A control apparatus causes a display device to display one preview page image or at least some of a plurality of preview page images indicating an image read from one abnormality-sensed document sheet or all of a plurality of abnormality-sensed document sheets before a data output process is executed after a consecutive image acquisition process in a consecutive reading job comes to an end in a case where an abnormal state in which an abnormality is sensed in the middle of execution of the consecutive image acquisition process of the consecutive reading job occurs. The control apparatus causes the display device to display inquiry information for inquiring one instruction of a plurality of candidates including continuation and cancellation of the consecutive reading job. The control apparatus causes an image processing apparatus to execute a process compliant with an instruction of a response to the inquiry information.
A printing system includes a printing device having a raster image processing (RIP) system. The printing device includes a controller to implement the RIP system. A manager of the RIP system configures RIP instances to process different levels of page complexity of a job. The RIP system evaluates the pages in the job to determine one or more pages that are complex. An optimization operation is selected to apply to a complex page to optimize the page to reduce rendering time in the RIP system. If the optimization operation is not effective, then the RIP system launches a configured RIP to render the complex page. A neural network model is trained to select the optimization operation.
A control apparatus executes first control when a first abnormal state in which an abnormality is sensed in the middle of execution of a consecutive image acquisition process of a consecutive reading job with a first operation mode selected occurs. The control apparatus executes second control when a second abnormal state in which the abnormality is sensed in the middle of execution of the consecutive image acquisition process of the consecutive reading job with a second operation mode selected occurs. The first control includes causing, by the control apparatus, an image processing apparatus to suspend the consecutive image acquisition process. The second control includes causing, by the control apparatus, the image processing apparatus to continue the consecutive image acquisition process of the consecutive reading job to an end.
A pretreatment liquid is used for pretreating a medium on which an image is recorded using a water-based ink. The pretreatment liquid contains core-shell particles having a 2-ethylhexyl acrylate as a core and a benzyl methacrylate as a shell, polyester microparticles, a water-soluble organic solvent, and water. A mass ratio of the core-shell particles to the polyester microparticles is 0.3 or more and 3.0 or less.
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
A sheet conveying device includes a pair of conveying rollers and a shutter member. The shutter member has a body portion and a regulating portion protruding radially outward from the outer circumferential edge of the body portion. The regulating portion has a contact surface struck by the leading end of the sheet and a locking portion formed at the boundary between the body portion and the contact surface. N pairs of shutter members, (where n is an integer of two or more) are disposed symmetrically left to right from inward to outward along the sheet width direction, and the m th pair of shutter members (where m is an integer of one or more but n−1 or less) from inward along the sheet width direction has the locking portion formed radially outward compared to the (m+1)th pair of shutter members adjacent outward along the sheet width direction.
A timing device measures an elapsed time from a time when a feeding process for each sheet is started to a time when each sheet is detected by a sheet detecting device. A processing device acquires size information representing a size of a stack of sheets. The processing device, in a case in which a target measurement time measured by the timing device for a target sheet fed by the feeding process is not shorter than a preset reference feeding time, derives a feeding delay time of the target sheet by a size correction process that corrects a difference between the target measurement time and the reference feeding time in accordance with the size information.
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
7.
SHEET CONVEYING DEVICE, IMAGE PROCESSING APPARATUS, AND SHEET CONVEYING METHOD CAPABLE OF PREVENTING NEXT SHEET OF SHEET TO BE FED FROM BEING CONVEYED BEYOND SHEET FEED NIP PORTION
A sheet conveying device includes a pickup roller, a conveying member, a separation roller, and a lowering processing portion. The pickup roller rotates in a first direction capable of conveying a sheet lifted by a lift portion in a conveying direction. The conveying member rotates in a second direction capable of conveying the sheet conveyed by the pickup roller in the conveying direction. The separation roller forms, together with the conveying member, a sheet feed nip portion therebetween, and rotates in a fourth direction opposite to a third direction capable of conveying the sheet in the conveying direction. The lowering processing portion lowers the lift portion after the leading edge in the conveying direction of the sheet has passed through the sheet feed nip portion.
An image forming apparatus includes an apparatus body, an image carrying member, a developing portion, and a container. The developing portion is supported to be swingable about a rotation shaft relative to the apparatus body, and is movable about the rotation shaft between a developing position where the developer carrying member is located close to the image carrying member and a retracted position where the developer carrying member is located away from the image carrying member. The container removably mounted in the apparatus body, and stores toner supplied to the developing portion. The rotation shaft of the developing portion has a toner inlet portion through which the toner in the container passes into the developing portion.
The claimed invention relates to management of documents with branding. The system receives at least one document and detects at least one logo. The system retrieves branding information based on the detected logos and generates folders based on the branding information and a preset threshold. The system then modifies a location of documents based on the branding information and the preset threshold.
A sheet detecting device detects each sheet fed by a feeding process at a detection position on a downstream side of a feeding rotating body in a sheet feeding direction. A timing device measures an elapsed time from a time when the feeding process for each sheet is started to a time when each sheet is detected by the sheet detecting device. A processing device derives a target feeding time required for a target sheet to be fed from an initial reference position to the detection position based on a target measurement time measured by the timing device for the target sheet fed by the feeding process. The processing device counts a delay count that is a number of times the target feeding time exceeds a delay determination time. The processing device determines a deterioration state of a feeding mechanism based on the delay count.
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
11.
IMAGE FORMING APPARATUS CAPABLE OF PREVENTING DRIVE VOLTAGE SET ON BASIS OF TEMPERATURE OF INK FROM EXCEEDING OUTPUTTABLE RANGE OF POWER SUPPLY AND SETTING METHOD
An image forming apparatus includes an ejection portion, a first power supply, a first setting processing portion, and a third setting processing portion. The ejection portion ejects ink from a nozzle in response to an input of a drive voltage. The first power supply outputs the drive voltage within the outputtable range corresponding to an input voltage in response to the input of the input voltage. The first setting processing portion sets the drive voltage within a settable range set in advance on the basis of the temperature of the ink. In a case where any one of an upper limit value and a lower limit value of the settable range is not included in the outputtable range, the third setting processing portion sets the input voltage on the basis of the upper limit value and the lower limit value.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
An image forming apparatus includes a main body, a container and a cover. The container includes a supply port, a shutter and a seal member which seals a gap between an outer edge portion of the supply port and the shutter. The image forming apparatus includes a shutter opening/closing mechanism. The shutter includes a shutter engagement portion, and the shutter opening/closing mechanism includes a first engagement portion. When the cover reaches a closed position, the first engagement portion makes contact with the shutter engagement portion from the inner side of the main body to cause the shutter to slide from a blocking position toward an opening position.
An image forming apparatus includes a plurality of containers, a plurality of first actuators, a second actuator, a plurality of first biasing members and a second biasing member. In a state where each of the first actuators is in a first non-fitting position, the first actuator presses the second actuator to cause the second actuator to remain in a second non-fitting position whereas in a state where each of the first actuators is in a first fitting position, the first actuator releases the pressing of the second actuator. The biasing force of one of the first biasing members is greater than the biasing force of the second biasing member.
A printing device is disposed above a sheet storing portion. A heat exchange unit is disposed adjacent to a cooling target, which is a part of the printing device, and exchanges heat between the cooling target and refrigerant liquid. A heat exchange area tray is disposed in an area spanning the entire heat exchange unit in plan view between the sheet storing portion and the heat exchange unit, and can receive liquid falling from above.
A maintenance device includes a cap, a recovery part, an air pump, and a supply part. The cap is provided for an inkjet head and configured to be attached to a nozzle surface of the inkjet head. The recovery part has a vent port opened to an atmosphere and is configured to recover air from the cap. The air pump is configured to suck the air from the recovery part. The supply part is provided for the cap and configured to store a humidifying medium, generate a humidified air by passing air supplied from the air pump through the humidifying medium, and supply the humidified air to the cap.
When an error occurs in an image forming apparatus before execution of an interrupting print job, an interruption decider compares between an error type and property information of the interrupting print job, thereby deciding whether the interrupting print job is executable with the error remaining unfixed. When the interruption decider decides that the interrupting print job is executable, with the error remaining unfixed, the image forming apparatus suspends a preceding job and shifts the job to be executed to the interrupting print job, and executes the interrupting print job. When the error is fixed thereafter, a controller of the image forming apparatus resumes the execution of the preceding job, according to a print queue.
IMAGE FORMING APPARATUS CAPABLE OF CONTROLLING TIMING OF SPREADING OF FONT DATA, PRINTING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM WITH PRINTING PROGRAM STORED THEREIN
An image forming apparatus includes a control device. The control device operates as a printer. The printer executes: a font spreading step of spreading font data to a RAM after start of processing for printing; a report creation step of using the font data spread to the RAM in the font spreading step to create a report; a report printing step of printing the report created in the report creation step; and a font deletion step of deleting the font data spread to the RAM in the font spreading step from the RAM, and executes the font deletion step after the report creation step.
A sheet feed control system includes an acquisition part, a first detection part, and a control part. The acquisition part acquires a size of a sheet to be conveyed. The first detection part detects a jam of the sheet. The control part performs, in a case where the jam is detected, either first feed control or second feed control in accordance with the size of the sheet. The first feed control is control to convey the sheet to a position to fit inside a drawer unit including a conveyance path for the sheet and being capable of being pulled out in a direction that intersects with a conveyance direction of the sheet from an apparatus main body of the image forming apparatus. The second feed control is control to convey the sheet to a position to fit outside the drawer unit.
An image forming apparatus includes, an ink ejection portion, a rotation processing portion, a sensing processing portion, a count processing portion, and a report processing portion. The ink ejection portion ejects ink to a sheet conveyed by a conveying belt provided with marks at a predetermined interval. The rotation processing portion rotates the conveying belt once and brings the conveying belt to a stop. The sensing processing portion senses an abnormal section of the conveying belt using an imaging portion while the rotation processing portion is rotating the conveying belt. The count processing portion counts the number of the marks that pass by the imaging portion until the conveying belt comes to a stop after the abnormal section is sensed. In a case where the abnormal section is sensed, the report processing portion reports sensing of the abnormal section and a result obtained by counting the number of marks.
Upon deciding that a plurality of jam detection positions include jam detection positions where jam has occurred, and that the jam detection positions where the jam has occurred include the jam detection position corresponding to a heater unit, a controller of an image forming apparatus instructs a controller of a drying device to move the heater unit from a first position to a second position. And the controller of the image forming apparatus transmits information, indicating that the heater unit is moving from the first position to the second position, to a controller of a display operation device and transmits information, indicating jam occurrence status of all the jam detection positions where the jam has occurred, to the controller of the display operation device.
An image forming apparatus includes a main body, a container, an outer cover and an inner cover which is supported turnably around a second axis with respect to the outer cover. The inner cover sandwiches the container between the outer cover and an upper part located above the second axis. After the inner cover enters the main body, by pressing the inner cover toward an outer side, the upper part of the inner cover is turned around the second axis to approach the container. The inner cover includes an engagement portion in a lower part located below the second axis. In a state where the inner cover is not pressed toward the outer side, the container engages with the engagement portion.
A management device includes a calculator that calculates a consumption amount of a material resource consumed for a new print job stored in a job queue, and a time required for executing the print job, a decider that decides, on a basis of the consumption amount of the material resource and the time required, a deadline specified in the new print job, a vacant time of a printing device, and predicted availability of the material resource, based on future consumption and replenishment, a scheduled time of day of execution of the new print job, at which the consumption amount of the material resource consumed for the new print job, and the time required, can be secured within the vacant time of the printing device before the deadline, and an updater that updates the execution schedule, according to the scheduled time of day of execution decided by the decider.
An image reading apparatus includes an image reading device, an operation device, and a controller. The controller executes, when a code is detected from image data representing a document image of a plurality of pages, and a normal partitioning instruction is received via the operation device, a normal partitioning process including partitioning the image data at a position corresponding to a page containing the code, the document image of the page containing the code inclusive, and executes, when the code is detected from the image data, and an exclusion partitioning instruction is received via the operation device, an exclusion partitioning process including partitioning the image data at the position corresponding to the page containing the code, excluding the document image of the page containing the code.
A second processor is capable of communicating with a first processor and an external apparatus and executes a download to receive a plurality of pieces of candidate firmware and a plurality of pieces of identification data from the external apparatus. When the download is executed, the second processor transmits the plurality of respective pieces of identification data. The first processor transmits a plurality of respective responses indicating whether or not the plurality of respective pieces of identification data are targets for updating pieces of implemented firmware. In a case where the plurality of responses includes positive responses indicating the targets, the second processor transmits pieces of target firmware corresponding to the positive responses among the plurality of pieces of candidate firmware. The first processor updates firmware corresponding to the target firmware to the target firmware.
An information processing system includes an acquisition unit, a communication unit, and a processing unit. The acquisition unit acquires type information indicating a type of a wireless tag included in a consumable product (toner cartridge) used in an image processing apparatus. The communication unit communicates with the wireless tag. The processing unit executes, at a timing when a response time according to type information has elapsed since the processing unit sent a command to the wireless tag, a determination process of determining whether or not the consumable product is a genuine product on the basis of whether or not response information is received from the wireless tag.
A motor control system includes an acquisition portion, a setting portion, and a control portion. The acquisition portion acquires a pulse signal for an instruction about acceleration and deceleration operations on a motor. The setting portion sets a stop frequency for the motor on the basis of a frequency of the pulse signal at time of an acceleration operation on the motor. The stop frequency corresponds to a stop timing of the pulse signal. The control portion executes a stop process of stopping the motor using short-circuit braking in a case where a frequency of the pulse signal at time of a deceleration operation on the motor reaches the stop frequency.
H02P 3/12 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by short-circuit or resistive braking
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
A motor control system includes a first acquisition portion, a calculation portion, and a control portion. The first acquisition portion acquires a pulse that is output from a detection portion which detects rotational speed of a motor. The motor rotates a conveyor (screw) that conveys toner to be removed. The calculation portion calculates rotation speed of the motor in a specific period longer than a period of the pulse on the basis of the acquired pulse. The control portion controls the motor on the basis of the rotation speed calculated by the calculation portion such that the rotation speed of the motor is constant.
H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
G01P 3/481 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
G03G 21/10 - Collecting or recycling waste developer
28.
INFORMATION PROCESSING SYSTEM AND ELECTRONIC DEVICE
An importing-end electronic device includes a reader, an unmounted state detector, a notifier, and an executer. The reader retrieves device information from an external storage medium. The unmounted state detector decides whether an optional device mounted on an exporting-end electronic device is mounted on the importing-end electronic device, on a basis of mounting status information included in the device information retrieved by the reader, and detects, upon deciding that there is an optional device that is unmounted, the unmounted optional device. The notifier notifies the unmounted optional device, detected by the unmounted state detector, to a user. The executer executes an importing operation, on a basis of the set value data included in the device information retrieved by the reader.
An optical scanning device (12) includes a casing (12a), a transmissive member (52), a linear member (54), a drive portion (55), guide rails (61), a pair of cleaning holders (511), a cleaning member (53), a detecting portion (56), and a control section (90). The control section (90) controls driving of the drive portion (55). The control section (90) performs control so that, during execution of a cleaning mode, upon detection by the detecting portion (56) that one of the pair of cleaning holders (511) has reached one end of a movement path of the one of the pair of cleaning holders (511), an outward operation is started, and upon detection by the detecting portion (56) that the other of the pair of cleaning holders (511) has reached one end of a movement path of the other of the pair of cleaning holders (511), a homeward operation is started.
G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
30.
CARBON DIOXIDE EMISSION ESTIMATION SYSTEM, POWER CONSUMPTION ESTIMATION SYSTEM, CARBON DIOXIDE EMISSION ESTIMATION PROGRAM, AND POWER CONSUMPTION ESTIMATION PROGRAM
This carbon dioxide emission estimation system obtains an estimated emission value by using a carbon dioxide emission estimation model, the estimated emission value serving as an estimated value of carbon dioxide emissions from an image forming device, and the carbon dioxide emission estimation model being a mathematical expression for estimating emissions (S182). The carbon dioxide emission estimation model is used to obtain an estimated emission value by using an estimated consumption value obtained by indexing an estimated logarithmic consumption value obtained according to a multiple regression equation in which the estimated logarithmic consumption value is used as an objective variable, the estimated logarithmic consumption value serving as a value obtained through logarithmic conversion of an estimated consumption value serving as an estimated value of electric power consumption by the image forming device. With the multiple regression equation, at least some explanatory variables are subjected to logarithmic conversion.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof
31.
DEVICE MANAGEMENT SYSTEM AND DEVICE MANAGEMENT PROGRAM
A device management system includes a device management unit that manages a device. The device management unit executes a warning of a sign of a failure in the device. The device management unit sends a warning mail that is an e-mail for notifying of the warning in a case where the device management unit executes the warning.
An inkjet image forming apparatus includes aa shite-ink head unit, a precoating head unit, and a color-ink head unit. The white-ink head unit ejects white ink to a printing substrate conveyed in a predetermined conveying direction. The precoating head unit ejects a precoating liquid to the printing substrate. The color-ink head unit is arranged on a downstream side of the white-ink head unit and the precoating head unit in the conveying direction, and ejects color ink other than the white ink to the printing base material. The white ink is ejected from the white-ink head unit to a white image forming region of the printing substrate. The color ink is ejected from the color-ink head unit to a color image forming region of the printing substrate after the white ink is ejected from the white-ink head unit or after the precoating liquid is ejected from the precoating head unit.
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
33.
INK, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS
An ink is an ink for non-absorbent recording media. The ink includes: a silicone surfactant, a binder, and water. The ink has a pH of 6.5 or more and 9.0 or less at 25° C. In this ink, by blending the binder, an image with high adhesion to the non-absorbent recording medium can be formed and high rubfastness in the image formed on the non-absorbent recording medium can be achieved. Further, in this ink, by blending the silicone surfactant and setting the pH at 25° C. to 6.5 or more and 9.0 or less, high wet-spreadability on the non-absorbent recording medium is achieved.
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
A document conveying device includes a roller holder, a cover portion, a pair of wall portions, a hook portion, and a linking portion. The roller holder rotatably supports a pickup roller and is provided so as to be rotatable about a rotation shaft of a sheet feed roller. The cover portion is provided so as to be openable and closable relative to a document guide portion. The pair of wall portions face each other in the axial direction of the rotation shaft with the cover portion interposed therebetween. The hook portion is provided at one end portion of the cover portion in the axial direction so as to be capable of advancing and retracting along the axial direction, and engages with an upper surface portion of the wall portion. The linking portion rotates the roller holder in conjunction with the advancing and retracting of the hook portion.
122 may be the same or different, and each is an oxygen atom, a sulfur atom, or a selenium atom. Each R may be the same or different and is a substituted or unsubstituted phenyl group or biphenyl group.)
H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
H10K 30/86 - Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers
H10K 85/60 - Organic compounds having low molecular weight
A document reading device includes a pick-up roller, a sensor, an operation section, and a sheet feeding controller. The pick-up roller draws out a plurality of sheets one by one from a sheet table on which the plurality of sheets are loaded. The sensor detects presence or absence of the sheet. The operation section receives an operation of a user. The sheet feeding controller controls drive to raise the pick-up roller on the basis of a detection result of the sensor and an operation instruction from the operation section.
An electrophotographic photoreceptor includes: a conductive base, a photosensitive layer provided on the conductive base, and a protective layer provided on the photosensitive layer. The protective layer is an acrylic resin or methacrylic resin that is a cured body of a photocurable composition including a photocurable compound and a photopolymerization initiator. A ratio of a value of a maximum peak in a wavenumber range of 1420 cm−1 to 1400 cm−1 in an infrared absorption spectrum of the protective layer to a value of a maximum peak in a wavenumber range of 1950 cm−1 to 1600 cm−1 is 1.02 or more and 1.30 or less. The protective layer has an elastic work rate of 50.0% or more and 90.0% or less.
An inkjet ink includes: a pigment, a pigment coating resin, a hydrophobic solvent having a Log P of 0.03 or more and 0.51 or less, and water. In the inkjet ink, a ratio of a content of the pigment coating resin to a content of the pigment is 8.0 mass % or more and 12 mass % or less. In the inkjet ink, a content of the hydrophobic solvent is 10 mass % or more and 30 mass % or less. In the inkjet ink, a pigment dispersion that includes the pigment and the pigment coating resin has an average particle diameter of 618 nm or more when diluted 100-fold by mass with a mixed solution of 50 parts by mass of the hydrophobic solvent and 50 parts by mass of water.
C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
An inkjet recording apparatus forms an image with a first ink and a second ink. A first minimum film-forming temperature of a first binder contained in the first ink is equal to or more than a second minimum film-forming temperature of a second binder contained in the second ink. The inkjet recording apparatus includes a first ejection head, a first drying section, a second ejection head, and a second drying section. The first ejection head ejects the first ink onto a recording medium. The first drying section dries the first ink ejected onto the recording medium by the first ejection head at a first drying temperature that is equal to or more than the second minimum film-forming temperature and equal to or less than the first minimum film-forming temperature. The second ejection head ejects the second ink onto the first ink dried by the first drying section. The second drying section dries the second ink ejected onto the first ink by the second ejection head at a second drying temperature that is equal to or more than the first minimum film-forming temperature and equal to or less than 80° C.
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
40.
DOCUMENT CONVEYING APPARATUS, IMAGE PROCESSING APPARATUS, AND DOCUMENT CONVEYING METHOD
In a document conveying apparatus, a stop processing portion executes a stop process to stop a document conveying operation by a conveying mechanism in a case in which a second detection processing portion determines that an amount of documents placed on the document discharge unit has reached a specific amount. The stop processing portion, in a case in which a first detection processing portion detects that no document is placed on the document discharge portion when the specific job is started, limits execution of the stop process during execution of the specific job.
An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, an intermediate transfer belt, a cleaning brush, an image density sensor, and a control portion. The control portion executes calibration including: a first adjustment process of changing an image forming condition based on a result of detection of a first reference image formed on the intermediate transfer belt; a first bare-surface-measurement process of detecting, after execution of the first adjustment process, a first-reference-image formation area; and a second adjustment process of changing, after execution of the first bare-surface-measurement process, the image forming condition based on a result of detection of a second reference image formed on the first-reference-image formation area. In a case where an output value of the image density sensor in the first bare-surface-measurement process is equal to or less than a threshold value, the second adjustment process is executed.
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
G03G 15/06 - Apparatus for electrographic processes using a charge pattern for developing
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
A sheet conveying apparatus includes a feed roller, a separation pad, a separation pad holder, a conveying guide member, a separation roller, a first vibration damping member, and a second vibration damping member. The feed roller feeds a sheet from a sheet feeding tray in a predetermined conveying direction. The separation pad is provided on a downstream side of the feed roller in the conveying direction. The separation pad holder holds the separation pad. The conveying guide member guides a conveyance of the sheet and supports the separation pad holder. The separation roller holds the sheet fed by the feed roller between itself and the separation pad and conveys the sheet in the conveying direction. The first vibration damping member is provided between the separation pad and the separation pad holder. The second vibration damping member is provided between the separation pad holder and the conveying guide member.
An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, an intermediate transfer belt, a cleaning brush, an image density sensor, and a control portion. The control portion is capable of executing a cleaning performance determination mode for determining cleaning performance of the cleaning brush. The cleaning performance determination mode includes: a reference image formation process of forming a reference image on the intermediate transfer belt; and a first bare-surface-measurement process of detecting a reference-image formation area, using the image density sensor, after the intermediate transfer belt has rotated once. When a fluctuation range of an output waveform of the image density sensor in the first bare surface measurement process is equal to or less than a threshold value, it is determined that the cleaning performance of the cleaning brush is normal.
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
G03G 21/10 - Collecting or recycling waste developer
44.
MAGNETIC CARRIER AND TWO COMPONENT DEVELOPER CONTAINING THE SAME, AND METHOD FOR PRODUCING MAGNETIC CARRIER
Magnetic carrier includes a carrier core and a resin coat layer that coats the surface of the carrier core and can electrostatically charge toner by friction. The carrier core has, in a depressed part in its surface, fine particles of which the volume average primary particle size is 1 μm or less. The amount of fine particles present on the surface of the carrier core is, on a number basis when the particle distribution of the carrier core is measured, 2% or more but 20% or less.
An inkjet ink is a water-based ink, including: a pigment, a water-based solvent, an alkaline agent, and a dispersion resin. The dispersion resin is a block polymer that includes a hydrophobic polymer block including benzylmethacrylate and a hydrophilic polymer block including methacrylic acid. The block polymer has an acid value of 180 mg KOH/g or more and 280 mg KOH/g or less, and the block polymer has a neutralization rate of 40% or more and 60% or less.
A sheet feeding device includes a pick-up roller, a sensor, and a sheet feeding controller. The pick-up roller draws out a plurality of sheets one by one from a sheet table on which the plurality of sheets are loaded. The sensor detects presence or absence of the sheet. The sheet feeding controller controls drive to raise the pick-up roller on the basis of a detection result of the sensor.
B65H 7/06 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
An ink set includes: a first ink, a second ink, and a third ink. Each of the first ink, the second ink, and the third ink includes a binder, an organic solvent, water, and a surfactant, and the binder included in the first ink includes at least one of an acrylic resin or a polyolefin resin. The binder included in each of the second ink and the third ink includes a urethane resin, An absolute value of a difference between surface tension of the first ink and surface tension of the second ink is 2.0 mN/m or less. An absolute value of a difference between the surface tension of the first ink and surface tension of the third ink is 2.0 mN/m or less.
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
A printing system includes a printing device having a raster image processing (RIP) system having an allocated amount of memory to support a plurality of RIP instances. The printing device includes a controller to implement the RIP system. A manager of the RIP system configures RIP instances to process different levels of page complexity of a job. The RIP system evaluates the pages in the job to determine one or more pages that are complex. A complexity level is determined for the complex page. The RIP system assigns the complex page to a RIP instance corresponding to the complexity level. The RIP system may configure the number and types of RIPs based on the allocated amount of memory.
A transportation device is configured to transport a document sheet along a transportation path. An image sensor is configured to optically scan an image at a predetermined scanning position in the transportation path and generate a scanned image that includes an image of the document sheet. An opposing member is arranged oppositely to the image sensor at the predetermined scanning position. An oblique motion detecting unit is configured to detect oblique motion of the document sheet on the basis of a shadow image of the document sheet that appears in a scanned image obtained by the image sensor. Further, the oblique motion detecting unit (a) derives a threshold value on the basis of a density of an image of the opposing member in the scanned image, and (b) detects the shadow image on the basis of the derived threshold value.
A sheet conveying apparatus includes a feed roller, a separation pad, a separation roller, and at least one groove. The feed roller feeds at least one sheet from a sheet feeding tray in a predetermined conveying direction. The separation pad is provided on a downstream side of the feed roller in the conveying direction. The separation roller holds the at least one sheet fed by the feed roller between itself and the separation pad and conveys the at least one sheet in the conveying direction. At least one groove is provided on a surface of the separation pad with which the at least one sheet comes into contact.
Magnetic one-component toner includes a toner base particle containing at least a binder resin and a magnetic powder and an external additive attached to its surface. The binder resin contains an amorphous polyester resin and a crystalline polyester resin containing an aliphatic diol with a carbon number of 3 or more but 9 or less. The amount of crystalline polyester resin added is 5 mass % or less relative to the amorphous polyester resin. Let Tg1 be the glass transition point measured using a differential scanning calorimeter when temperature is first raised and let Tg2 be the glass transition point measured when, after the Tg1 measurement, temperature is lowered and raised again, then Tg(45) and Tg(25), which are the values of Tg1 measured after standing still at 45° C. and 25° C., respectively, for 100 hours, satisfy 0
G03G 15/09 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
52.
MAGNETIC ONE-COMPONENT TONER AND IMAGE FORMING APPARATUS USING THE SAME
Magnetic one-component toner includes a toner particle having a toner base particle and an external additive attached to the surface of the toner base particle. The toner base particle contains at least a binder resin and a magnetic powder. The external additive contains a wet silica particle and a conductive inorganic particle. The wet silica particle has its surface treated with a hydrophobization agent comprising a long-chain fatty acid ester with a carbon number of at least 18 or more. The conductive inorganic particle has a hydrophobized surface. The volume resistivity of the wet silica particle is 1.0E+7 [Ω·cm] or more but 1.0E+10 [Ω·cm] or less.
G03G 15/09 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
An image forming apparatus includes a reader and a setting section. The reader reads a sheet with a printed barcode as image data. The setting section sets a setting related to storing of the image data to first job setting information that is information related to storing of the image data, the first job setting information being given to the barcode.
A sheet conveyance device includes a conveyance roller pair formed with a first roller and a second roller. The first roller includes a first conveyance unit that includes a first roll shaft to which a first roll portion is fixed. The first conveyance unit includes a pair of bearing portions and a pair of first biasing members. The pair of bearing portions rotatably support both end portions of the first roll shaft in a sheet width direction, and are movable together with the first roll shaft in the sheet width direction. The pair of first biasing members bias the pair of bearing portions in opposite directions along the sheet width direction.
A packaging material packages an object having a main body and a cord integrally connected to one side surface of the main body. The packaging material includes a box body and a cushioning material. The box body has a cylindrical side plate and a bottom plate. The cushioning material is arranged in the box body, and the main body is placed on the cushioning material. The cushioning material has a housing space in which the cord is housed.
B65D 81/02 - Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
B65D 85/00 - Containers, packaging elements or packages, specially adapted for particular articles or materials
An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a toner container, a toner concentration sensor, a toner charge amount detection portion, and a control portion. The developing device includes a developer carrying member carrying a two-component developer and develops an electrostatic latent image into a toner image. The toner concentration sensor detects a toner concentration in the developing device. The toner charge amount detection portion detects a toner charge amount in the developing device. Based on a result of detection by the toner concentration sensor, the control portion controls replenishment of the developing device with the toner from the toner container. Based on the toner charge amount detected by the toner charge amount detection portion, the control portion executes first target value changing control of changing a target value of the toner concentration.
A document conveying device includes a sheet feeding tray, a sheet feeding unit, an actuator, a sensor, and a control part. The sheet feeding unit includes a drive shaft, a holder, and a pickup roller. The actuator includes a rotational shaft, a detecting piece, and a light-shielding piece. When a signal different from a signal outputted from the sensor when the actuator is driven with the document set on the sheet feeding tray is input, the control part returns the sheet feeding unit to an initial posture in which the pickup roller is separated upward from the sheet feeding tray.
In an image forming apparatus, an image forming unit can be replaced. An outer cover becomes in an open status when the image forming unit is replaced. An inner cover becomes in an open status with a manual operation with taking a predetermined time after the outer cover becomes in an open status when the image forming unit is replaced. A cover open/close sensor detects open and close statuses of the outer cover. The image forming unit includes a non-volatile unit memory. Further, the controller (a) performs data communication with the unit memory, and (b) if data communication with the unit memory is ongoing when the cover open/close sensor detects that the outer cover becomes in an open status, completes the data communication and cuts off power supply to the image forming unit before the predetermined time elapses.
A water-based ink for non-permeable media includes: a pigment, a urethane resin, a polyethylene wax, triethylene glycol monobutyl ether, and water. The urethane resin has a glass transition temperature of 40° C. or more and 110° C. or less and a breaking elongation at 25° C. of 50% or less. The polyethylene wax has a melting point of 100° C. or more and 140° C. or less. The content of the urethane resin is 3 mass % or more and 8 mass % or less in terms of solid content. The content of the polyethylene wax is 2 mass % or more and 5 mass % or less in terms of solid content. The content of the triethylene glycol monobutyl ether is 3 mass % or more and 6 mass % or less.
C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
60.
IMAGE CARRYING MEMBER UNIT AND IMAGE FORMING APPARATUS THEREWITH
An image carrying member unit includes an image carrying member and a cleaning device. The cleaning device has a cleaning blade that makes line contact with the outer circumferential surface of the image carrying member under a predetermined pressure and that is formed of an elastic material in the shape of a rectangular parallelepiped and scraping off residual toner on the image carrying member, and a supporting member to which the cleaning blade is fixed in a state projecting upstream in the rotational direction of the image carrying member. When the free length over which the cleaning blade projects from the support member is L [mm], the thickness of the cleaning blade is t [mm], and the contact pressure of the cleaning blade against the image carrying member is W [gf/cm], then 7.5*(L/t)−23.9≤W≤24 and 12≤W.
An image forming apparatus includes an image forming portion, a toner container, a control portion, and a storage portion. The control portion corrects, based on an integrated consumption amount of toner from a start of use of a developing device, a target value of a toner concentration in a two-component developer in the developing device. The storage portion stores a first integrated consumption amount that is the integrated consumption amount on a first production line of the image forming apparatus. The control portion calculates a second integrated consumption amount that is the integrated consumption amount in a setup operation for the image forming apparatus and an image output operation performed after a start of use thereof, and uses a sum of the first integrated consumption amount and the second integrated consumption amount to determine a correction value for correcting the target value of the toner concentration.
An image forming apparatus includes plural image forming units corresponding to plural toner colors, and a controller. The controller is configured to read and write data to respective non-volatile unit memories in the plural image forming units. Further, a common address is assigned to the non-volatile unit memories of the plural image forming units Furthermore, the controller comprises a switching unit configured to switch an image forming unit to which the data should be read or written among the plural image forming units.
An electronic apparatus includes a storage device that includes a non-volatile memory, and a controller. The controller is configured to be able to set a power supply mode of the electronic apparatus as a sleep mode that maintains power supply to the storage device. Further, when the controller changes the power supply mode to the sleep mode, the controller transmits a shutdown notification command to the storage device and thereby stops a confirmation operation of a data status of the storage device.
An image forming apparatus includes an exposure device, a driving control unit, and an exposure control unit. The exposure device is configured to expose a photoconductor drum with light while scanning the light and thereby form an electrostatic latent image. The driving control unit is configured to generate a secondary-scanning-directional reference signal. The exposure control unit is configured to generate a secondary-scanning-directional synchronization signal in synchronization with a primary-scanning-directional reference signal correspondingly to an edge of the secondary-scanning-directional reference signal, and control the exposure device and thereby cause the exposure device to form an electrostatic latent image corresponding to an image signal in synchronization with the secondary-scanning-directional synchronization signal. Further, the driving control unit generates the secondary-scanning-directional reference signal with a waveform that includes at least one additional edge within a predetermined period from the edge.
G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
An ink includes: a quinacridone pigment, a pigment dispersion resin, and an aqueous medium. Maximum absorbance at a wavelength of 300 nm or more and 350 nm or less in an ultraviolet-visible light absorption spectrum of a 25-fold diluted solution of a supernatant liquid obtained by centrifuging the ink at 23° C. and 140,000 rpm for 3 hours is 0.16 or more and 0.40 or less, and absorbance at 429 nm is 0.002 or less. In the ink, the number of coarse particles having a particle diameter of 500 nm or more is 4.0×108/mL or less. A 50-fold diluted solution of the supernatant liquid has a phosphorus concentration of 1.0 ppm or more and 16.0 ppm or less.
An image forming apparatus includes a body frame, a drum unit, and an exposure unit. The drum unit is inserted to between a pair of side plates through an opening. The body frame includes a fitted plate. The drum unit is fitted to, in a state positioned with respect to, the fitted plate. The exposure unit is fitted to, in a state positioned with respect to, a stay. One side plate has a through hole. The stay has a positioning protrusion. The fitted plate has a positioning hole. Inserting the positioning projection that projects outward from the one side plate through the through hole into the positioning hole positions the stay and the fitted plate with respect to each other.
A sheet conveying device includes a plurality of switching portions each having a plurality of branch paths branching off from a standard conveying path and a plurality of sheet collection portions configured to collect sheets at a later stage of the branch paths. The switching portions can selectively execute a normal conveying process in which each of a plurality of sheets is conveyed along the standard conveying path, and an emergency conveying process in which each of the plurality of sheets is conveyed to each of the sheet collection portions. The control device, when a jam is detected, causes a terminal switching portion, which is located farthest downstream in the sheet conveying direction among upstream switching portions having a path branching from an area downstream of the jam area, to execute the emergency conveying process, and causes the other portions to execute the normal or emergency conveying process.
A drying device according to the present disclosure includes: a lock control portion which performs control of driving an actuator based on a temperature anomaly signal from a temperature detection portion, to lock a cover member at a closing position; a first protection circuit which outputs, when the temperature anomaly signal is input, a drive signal for locking the cover member at the closing position; a heating control portion which performs control of stopping a heating portion based on a cover open signal from a cover detection portion during heating by the heating portion; and a second protection circuit which outputs, when the cover open signal is input, a stop signal for stopping the heating portion.
A connector support structure includes a connector and a support part. The connector attached to the support part is turned so as to change a posture of the connector from the first posture to the second posture while allowing the connection port to enter the clearance space to disengage the engagement of the pair of engagement parts with the pair of protruding portions. The connector attached to the support part allows the part of the pair of engagement parts to be arranged between the pair of protruding portions and the pull-out prevention portion and then slid toward one side in the third direction to be detached from the support part.
H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
70.
AUTOMATIC FOLDER CATEGORIZATION OF DOCUMENTS BASED ON EMBEDDED BRAND LOGO METHODS
A document categorization method of a document management system receives a plurality of documents imported. The method detects at least one brand logo in a document of a plurality of documents and compare the detected at least one brand logo and a brand logo lookup table to find a brand logo information of a corresponding brand logo. The method adds the brand logo information to a document metadata of the document for folder categorization. The method sends the document to destination folder based on the document class of the document metadata and creates a subfolder for placing the document in the destination folder based on the brand logo information of the document metadata. The method also removes a brand logo within a document to reduce the data size to create additional capacity in the document management system.
An image forming apparatus includes a photosensitive drum, a development unit, a unit frame that, by moving in one direction, moves a development roller in a direction toward the photosensitive drum and, by moving in the other direction, moves the development roller in a direction away from the photosensitive drum, a unit-side contact, and a body-side contact. Moving the unit frame in one direction brings the unit-side contact and the body-side contact into contact with each other and moving the unit frame in the other direction releases the unit-side contact and the body-side contact from contact with each other.
An image forming apparatus includes a controller that executes a printing operation provided that a user permits, despite a recording sheet size indicated by size information (registered size) of a recording sheet placed on a manual bypass tray discording from a print size designated by a print job, and suspends the printing operation without permission from the user, when the recording sheet size indicated by size information (registered size) of the recording sheet stored in a long sheet feeding cassette discords from the print size designated by the print job.
Systems and methods relate generally to printing. In a method, a job manager of a printing device DFE receives a print job. An exchange job definition formatted client (“client”) subscribes to receive associated signal information. The job manager provides the print job to a printer engine of the DFE. An exchange job definition message (“message”) associated with the print job is queued in a message queue of the DFE. The message queue and a signal queue are monitored by a task monitor of the DFE. The message is passed from the message queue to a task processor of the DFE. The message is processed responsive to content thereof by the task processor. A subscription for the client is received via the task processor by a subscription manager of the DFE. A combined message is created by the subscription manager using the subscription and an associated address for the client.
A printing system includes a printing device having a digital front end (DFE). The DFE communicates with a cloud server system within the printing system. The printing system is configured to print imposed pages having pages or documents having output intents. A first page of the imposed page has a first output intent. A second page of the imposed page has a second output intent. The first output intent relates to a first gamut applicable to color printing the first page. The second output intent relates to a second gamut applicable to color printing the second page. A page-level output intent for the imposed is set to the first output intent or the second output intent based on an evaluation of the first gamut and the second gamut.
An image forming apparatus includes a controller that causes a plurality of ink heads to eject ink to form a test chart, a density calculator that analyzes the test chart that has been read, and calculates the density of each of the images respectively formed by the plurality of ink heads, a decider that decides whether the density of the images is within a predetermined range from a density average of the images respectively formed by the ink heads of the same color, and an adjustment value calculator that calculates, with respect to the ink head that has formed the image, the density of which is deviated from the predetermined range, an adjustment value for adjusting the reference voltage to be used by the drive device driving the ink head, such that the density of the image to be formed becomes closer to the density average.
A fusing unit includes an opposing surface that is opposite to a portion of a heating unit and is formed in a first direction. A heating unit includes an adhesion surface and an elastic seal member. An adhesion surface is opposite to the opposing surface and is formed in the first direction. A seal member is arranged with the first direction as a longitudinal direction, is adhered to the adhesion surface, and is sandwiched between the opposing surface and the adhesion surface when the heating unit is located at a proximity position. The seal member has a structure in which a first foam member adhered to the adhesion surface, a resin sheet adhered to the first foam member, and a second foam member adhered to the resin sheet are stacked.
A processor causes a display device to display a graph image in which a plurality of graph elements, each of which represents data of an operation status of a target device, are arranged. The processor causes a target data image including text relating to the data of the operation status corresponding to a target graph element to be displayed at a position corresponding to the target graph element in a specific area. When a drag operation for moving the target data image is detected, the processor changes the display position of the target data image in a direction of the drag operation. The processor changes the target graph element and changes the display of the target data image in accordance with the change in the display position of the target data image.
G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
G06F 3/04842 - Selection of displayed objects or displayed text elements
78.
METHODS FOR INTELLIGENTLY MANAGING CLOUD PRINTING OPERATIONS
A printing system includes a printing device having a digital front end (DFE). The DFE communicates with a cloud server system within the printing system. The cloud server system includes a paper catalog for the papers used at the printing devices within the printing system. For each printing device, the cloud server system defines a set of papers based on data or information related to the printing device or to a paper being used at the printing device. The set of papers is a number of papers from the paper catalog selected based on the data. The set of papers are provided to the DFE of the printing device. Paper usage is monitored at the printing device and used to adjust the papers within the set of papers stored within the DFE.
An image forming apparatus includes a photoconductor drum, an intermediate transfer belt that moves in contact with the photoconductor drum, and a primary transfer roller that transfers a toner image on the photoconductor drum, to the intermediate transfer belt. A part of a first contact region between the intermediate transfer belt and the photoconductor drum, and a part of a second contact region between the intermediate transfer belt and the primary transfer roller, are made to overlap. A summit of the primary transfer roller, closest to the photoconductor drum in a direction in which the photoconductor drum and the primary transfer roller are aligned across the intermediate transfer belt, is set to intrude on the photoconductor drum, via the intermediate transfer belt. An intrusion amount of the summit of the primary transfer roller on the photoconductor drum, relative to an overlapping amount, is set within a predetermined proper range.
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
80.
IMAGE FORMING APPARATUS INCLUDING PHOTOCONDUCTOR DRUM AND PRIMARY TRANSFER ROLLER
An image forming apparatus includes a photoconductor drum, an intermediate transfer belt that moves in contact with the photoconductor drum, and a primary transfer roller which is a metal roller. A first contact region, being a region on the photoconductor drum in contact with the intermediate transfer belt, and a second contact region, being a region on the primary transfer roller in contact with the intermediate transfer belt, are spaced from each other, and a summit of the primary transfer roller, protruding farthest toward the photoconductor drum, in a direction in which the photoconductor drum and the primary transfer roller are aligned across the intermediate transfer belt, is set to intrude on the photoconductor drum, via the intermediate transfer belt.
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
An image forming apparatus includes an image forming portion and a sheet feed unit. The sheet feed unit has a pickup roller, a feed roller, and a retard roller. The pickup roller makes contact with a recording medium stored in a sheet feed cassette and feeds out the recording medium. The feed roller conveys the recording medium fed out by the pickup roller. The retard roller is kept in pressed contact with the feed roller to form a nip portion and conveys the recording medium while separating one sheet of it from the rest. The feed roller is covered at least partly from above by a first charge elimination member. The first charge elimination member is grounded.
An image forming apparatus includes an image forming portion, a sheet feeding portion, a discharge portion, a sheet conveyance passage, a branch conveyance passage, a conveyance guide, and a pair of assist rollers. The conveyance guide forms part of the conveyance surface of the sheet conveyance passage at the intersection between the sheet conveyance passage and the branch conveyance passage. The pair of assist rollers conveys a recording medium along the sheet conveyance passage. The conveyance guide is supported to be swingable about a swing axis in a direction in which it retracts from the conveyance surface of the sheet conveyance passage. One of the pair of assist rollers is fixed to a shaft extending parallel to the swing axis and is rotatably supported on the conveyance guide.
A cooling apparatus includes a main tank and a replenishment apparatus that replenishes a refrigerant liquid in the main tank, a waste liquid tank, a waste liquid pipe, and a liquid detection apparatus. The waste liquid tank is arranged at a position lower than the main tank. The waste liquid pipe is connected to a discharge port formed in the main tank and forms a flow channel extending to the waste liquid tank from the discharge port via a specific position. The liquid detection apparatus detects the refrigerant liquid in the waste liquid pipe at the specific position. The specific position is a position higher than the discharge port and lower than an upper end of a region capable of storing the refrigerant liquid in the main tank.
IMAGE FORMING APPARATUS AND INK SUPPLY METHOD CAPABLE OF PREVENTING TEMPERATURE OF HEATED INK SUPPLIED TO STORAGE PORTION FROM FALLING BELOW TARGET TEMPERATURE
An image forming apparatus includes an ejection portion, a container portion, a storage portion, a heater, a detection processing portion, and a supply processing portion. The ejection portion ejects ink. The container portion contains the ink to be supplied to the ejection portion. The storage portion stores the ink between the container portion and the ejection portion in a supply path of the ink from the container portion to the ejection portion. The heater heats the ink between the container portion and the storage portion in the supply path; The detection processing portion detects temperature of a location where the image forming apparatus is installed. The supply processing portion supplies the ink from the container portion to the storage portion at a supply speed based on the detected temperature detected by the detection processing portion.
A retard roller includes a roller main body, a shaft, a torque limiter, a holding member, and a restriction member. The torque limiter switches the roller main body between rotation and stopping. The holding member is disposed on one side of the roller main body in an axial direction thereof and supports the shaft. The restriction member is disposed on the other side of the roller main body in the axial direction thereof, includes a locking portion locked to the shaft, and restricts movement of the roller main body in the axial direction thereof. The roller main body is swingably supported via a first support portion provided in the holding member and a second support portion provided in the restriction member, and is pressed against the feed roller.
An inkjet recording apparatus includes a conveyance portion, a recording portion, and a pretreatment liquid ejection head. The conveyance portion conveys a recording medium. The recording portion includes a recording head that ejects aqueous ink onto the recording medium conveyed thereto by the conveyance portion. The pretreatment liquid ejection head is arranged upstream of the recording portion in a conveyance direction of the recording medium and ejects a pretreatment liquid onto the recording medium by an inkjet method. The pretreatment liquid contains at least a binder resin and water. Where a resolution of the pretreatment liquid ejection head is indicated as A [dpi] and a resolution of the recording head is indicated as B [dpi], a relationship A
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
87.
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
A magnet member is non-rotatably secured inside a developing sleeve, and includes a plurality of magnetic poles arranged along a rotation direction of the developing sleeve. The magnetic poles include a main pole facing the image carrying member, and a peeling pole that is disposed downstream of and adjacent to the main pole in the rotation direction of the developing sleeve and that peels off the developer carried on the developer carrying member. A magnetic-flux-density peak-position of the main pole is located below a horizontal line passing through a rotation center of the developing sleeve, and as viewed from an axial direction, an angle that a line extending from the magnetic-flux-density peak-position of the main pole to the rotation center of the developing sleeve forms with respect to the horizontal line passing through the rotation center of the developing sleeve is 40° or larger but 80° or smaller.
An inkjet recording apparatus includes a cooling device, a current sensing device, and a determination device. The cooling device includes a centrifugal pump and a motor that drives the centrifugal pump. The current sensing device senses a current flowing to the motor. The determination device determines whether or not air entrainment and liquid leakage occur in the circulation path in the cooling device by comparing the current sensed by the current sensing device and a current reference range.
A transfer unit includes a switching cam and a fixed cam. The fixed cam includes a second guide hole, a positioning groove, and a cam positioning recessed portion. The second guide hole is formed to overlap a first guide hole and is engaged with a first and a second engaging portion. The positioning groove is formed in an outer peripheral part of the second guide hole along the radial direction and is engaged with, when a first roller is arranged opposite an image carrying member, the first engaging portion and, when a second roller is arranged opposite the image carrying member, the second engaging portion. The cam positioning recessed portion is formed in the outer peripheral part of the second guide hole along the radial direction and is engaged with the second engaging portion when the first engaging portion engages with the positioning groove.
G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
Provided is an image forming apparatus capable of suppressing an influence of environment when printing on a print quality. The image forming apparatus includes a photosensitive member, a charging roller, and a power supply. The photosensitive member has a relative dielectric constant of 3.7 or more and 6.2 or less. The charging roller charges the photosensitive member and has a surface rotational resistance of 5.2 log Ω or more and 6.1 log Ω or less. The power supply applies a DC voltage to the charging roller.
G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitisingCorona discharge devices
A controller controls a first lifting device and thereby changes a height position of the feeding tray, and controls a second lifting device and thereby changes a height position of an ejection port correspondingly to a sheet amount on an output tray. If an output lift upperlimit sensor detects that the ejection port reaches an upperlimit height position, the controller temporarily stops document sheet transportation. When the controller tries to lift the ejection port to a height position corresponding to the sheet amount, if a height position of the ejection port does not become the height position corresponding to the sheet amount and the output lift upperlimit sensor does not detect that the ejection port reaches the upperlimit height position even though the second lifting device operates for predetermined time, then the controller temporarily stops document sheet transportation until document sheets on the output tray are removed.
H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof
B65H 7/14 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
A pretreatment liquid is used for pretreating an impermeable medium on which an image is recorded with a water-based ink. A polarity component of surface free energy of the impermeable medium is 10 mJ/m2 or less. The pretreatment liquid contains 10 mass % or more of 2-ethylhexyl acrylate.
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
B41J 2/155 - Arrangement thereof for line printing
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
93.
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
An electrophotographic photoreceptor includes: a conductive base; an intermediate layer provided on the conductive base; and a photosensitive layer provided on the intermediate layer, the intermediate layer including titanium oxide and an intermediate layer resin, the titanium oxide having been subjected to no surface treatment with an inorganic material, a content of the titanium oxide being 1.3 parts by mass or more and 1.7 parts by mass or less with respect to 1.0 part by mass of the intermediate layer resin.
G03G 5/14 - Inert intermediate or cover layers for charge- receiving layers
G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitisingCorona discharge devices
G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge
94.
POSITIVELY CHARGEABLE MAGNETIC ONE-COMPONENT TONER
Positively chargeable magnetic one-component toner includes a toner particle having: a toner base particle containing at least a binder resin and a magnetic powder; and an external additive attached to the surface of the toner base particle. When the toner is mixed with standard carrier P-01 for 10 minutes such that the mass mixture ratio of the toner to the carrier is x (x=0.2, 0.4, 0.6, 0.8, or 1.0) and that the charge amount of the carrier is y, the approximation expression y=b*xa of the charge amount of the carrier fulfills 0.3≤a≤1 and −7≤b≤−3.
A magnetic one-component toner includes toner particles each including a toner base particle and an external additive attached to a surface of the toner base particle. The external additive includes conductive particles with a specific resistance of 1.0E+4 [Ω·cm] or lower, resin particles with a number average primary particle sizes of 50 nm or more but 100 nm or less, and silica particles. The resin particles are formed by using an anion surfactant and formed from a vinyl resin having a repeating unit represented by general formula (1) below, a repeating unit represented by general formula (2) below, and a repeating unit derived from a sulfo group-containing vinyl compound. A content ratio of the repeating unit derived from the sulfo group-containing vinyl compound in the vinyl resin is 2.0 mol % or more but 5.0 mol % or less relative to all repeating units in the vinyl resin.
A magnetic one-component toner includes toner particles each including a toner base particle and an external additive attached to a surface of the toner base particle. The external additive includes conductive particles with a specific resistance of 1.0E+4 [Ω·cm] or lower, resin particles with a number average primary particle sizes of 50 nm or more but 100 nm or less, and silica particles. The resin particles are formed by using an anion surfactant and formed from a vinyl resin having a repeating unit represented by general formula (1) below, a repeating unit represented by general formula (2) below, and a repeating unit derived from a sulfo group-containing vinyl compound. A content ratio of the repeating unit derived from the sulfo group-containing vinyl compound in the vinyl resin is 2.0 mol % or more but 5.0 mol % or less relative to all repeating units in the vinyl resin.
G03G 15/09 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
96.
TONER FOR DEVELOPMENT OF ELECTROSTATIC LATENT IMAGES
Toner for development of electrostatic latent images includes a toner particle having a toner core particle and a shell layer. The shell layer is formed of resin fine particles containing vinyl-based resin and including a plurality of types of first resin fine particles and second resin fine particles. The shell layer has a sea-like region formed of the plurality of types of first resin fine particles and island-like bumps formed of the second resin fine particles with a larger average particle size than the first resin fine particles. At least one type of first resin fine particles contains a quaternary ammonium compound and the second resin fine particles contain fluorine-containing vinyl-based resin. The average particle size of the second resin fine particles is from 70 nm to 150 nm, and the ratio of coverage of the surface of the toner core particle with the bumps is from 10% and 50%.
Toner for development of electrostatic latent images has a toner particle including a toner core particle and a shell layer that coats it. The toner core particle includes, at least, a binder resin and a colorant. The toner core particle contains as the binder resin a particular polyester resin having a repeating unit derived from 1,2-propanediol. The shell layer contains a alcoholic hydroxy group containing resin having one or more types of repeating unit having an alcoholic hydroxy group. The proportion of an alcoholic hydroxy group containing monomer in the alcoholic hydroxy group containing resin is 1 mass % or more. The coverage ratio of the surface of the toner core particle with the shell layer is 75% or more.
A cleaning solution is a cleaning solution for cleaning an ink ejection surface of a recording head of an inkjet recording apparatus, including: water; a water-soluble organic solvent; an amphoteric surfactant having a betaine structure; a silicone surfactant; a nonionic surfactant other than the silicone surfactant; and an inorganic salt having a pH buffering effect. The cleaning solution has viscosity at 25° C. of 2.5 mPa·s or less. The cleaning solution has a static surface tension of 25 mN/m or less. The cleaning solution has a pH of 8.0 or more and 9.5 or less after being sealed and allowed to stand at room temperature for one year.
A processing unit performs a postprocess for a sheet bunch on a processing tray. In a waiting transportation path, a subsequent sheet can wait while the postprocess is performed for the sheet bunch. If sheet transportation is suspended, a controller determines whether concurrent transportation is performed or not on the basis of whether there is the sheet bunch on the processing tray and whether there is the subsequent sheet in the waiting transportation path. In the concurrent transportation, when the sheet bunch is outputted through an ejection port, the controller transports the subsequent sheet to an output roller and causes the subsequent sheet to protrude from the ejection port such that the subsequent sheet partially overlaps the sheet bunch, and after a rear end of the sheet bunch passes through the ejection port, the controller reverses the output roller and transports the subsequent sheet to the processing tray.
B65H 43/06 - Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, completion of pile
B65H 29/12 - Delivering or advancing articles from machinesAdvancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands
B65H 29/14 - Delivering or advancing articles from machinesAdvancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands and introducing into a pile
B65H 29/60 - Article switches or diverters diverting the stream into alternative paths
B65H 31/02 - Pile receivers with stationary end support against which pile accumulates
B65H 37/04 - Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching, or stapling
An inkjet ink includes: a pigment, a water-based solvent, an alkaline agent, and a dispersion resin. The dispersion resin is a block polymer that includes a hydrophobic polymer block including benzylmethacrylate and a hydrophilic polymer block including methacrylic acid. The block polymer has an acid value of 120 mg KOH/g or more and 200 mg KOH/g or less. The water-based solvent has a log Kow of 0 or more.
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
