Abstract: A processor causes a printing portion to execute, when first conveying processing is executed, test print processing for executing processing of forming a plurality of test toner images on a sheet under a print condition that differs for each of the plurality of test toner images. The processor acquires a plurality of first sensing densities when the first conveying processing is executed. The processor causes the printing portion to execute the test print processing when second conveying processing is executed. The processor acquires a plurality of second sensing densities when the second conveying processing is executed. The processor compares the plurality of first sensing densities and the plurality of second sensing densities to adjust the print condition in the print processing when the second conveying processing is executed.

Abstract: An image forming apparatus includes a plurality of image bearers, a plurality of rotation reference position detectors, and circuitry. Each of the plurality of rotation reference position detectors faces a corresponding image bearer of the plurality of image bearers to detect a rotation reference position of the corresponding image bearer. The circuitry performs, before an operation of rotating the plurality of image bearers, alignment control based on a result of detection performed by the plurality of rotation reference position detectors. The alignment control is control of driving of the plurality of image bearers to acquire a given relationship between the respective rotation reference positions of the plurality of image bearers. The circuitry determines whether to perform the alignment control based on whether the operation of rotating the plurality of image bearers is a function maintenance related operation.

Abstract: An image forming apparatus includes a transfer member, a fixing unit, a double-side feeding path through which the sheet, performed with image formation on a first surface thereof and passed through the fixing unit; is fed to transfer the toner image onto a second surface thereof, a first feeding unit to feed the sheet in the double-side feeding path and a second feeding unit to feed the sheet fed by the first feeding unit toward the transfer member. A controller selects a first double-side feeding control in which the sheet is fed by the second feeding unit or a second double-side feeding control in which the sheet is fed by the first feeding unit and the second feeding unit in a case in which the double-side printing is performed in the second mode.

Abstract: A print group for a digital printer can include a transfer station and a wetting system. The transfer station can be configured to transfer a toner image onto a first side of a recording medium at a transfer point in response to an electrical field, the transfer station being configured to apply the electrical field between a transfer electrode on the first side of the recording medium and a counter-electrode on a second side of the recording medium, wherein the recording medium is directed between the transfer electrode and the counter-electrode. The wetting system can be configure to apply a conductive fluid onto a surface of the second side of the recording medium at the transfer point, the conductive fluid at least partially forming a conductive connecting layer between the surface of the second side of the recording medium and a surface of the counter-electrode at the transfer point.

Abstract: According to one example, there is provided a method of duplex printing. The method comprises printing recto pages and associated recto checkmarks on a first side of a web and printing verso pages and associated verso checkmarks on a second side of a web, the length of each successively printed recto and verso checkmark varying in accordance with a respective recto and verso checkmark length sequence, determining the length of successive printed verso and recto checkmarks and determining their sequence position in the appropriate checkmark length sequence, and determining whether a print error has occurred based on the determined recto and verso checkmark sequence positions.

Abstract: A second thermal transfer portion of upstream side transfers a foil image, to be not printed, from the foil sheet on a waste sheet, conveyed from an image forming apparatus, on which a desired negative toner image is transferred. The foil image, to be printed, remains on the transferred foil sheet. The waste sheet is ejected out of a foil transferring apparatus. A printing sheet of paper on which the desired positive toner image is transferred is conveyed from the image forming apparatus to a first thermal transfer portion of downstream side to meet time when the foil sheet on which the foil image, to be printed, remains reaches the first thermal transfer portion. The first thermal transfer portion transfers the foil image, to be printed, from the foil sheet on the conveyed printing sheet of paper on which the desired positive toner image is transferred.

Abstract: A printing method for a print job having at least two pages. After determining a position of rolled media in the printer, print data for either a first page or a second page of the print job can be staged for printing first. This can be performed at a host computer connected to the printer or it can be performed in the printer.

Abstract: A belt unit includes a belt wound around a plurality of rollers to rotate endlessly, a contact member disposed along a surface of the belt, an opposing member disposed facing the contact member via the belt, a moving member including an action receiving portion, to swing and movably support the opposing member to contact and separate from the belt, and a moving assembly. The moving assembly includes an actuator to bias the action receiving portion in a first direction in which the opposing member contacts the belt and in a second direction opposite the first direction in which the opposing member separates from the belt, a drive mechanism to move the actuator in the first and the second directions, and an elastic member to transmit a moving force of the actuator to the action receiving portion when the actuator moves.

Abstract: A printing system includes a first printing apparatus, a second printing apparatus, and a control device. The second printing apparatus is provided at a rear stage of the first printing apparatus, and includes a second preheating unit that preheats a recording medium from one surface before thermally fixing a toner image to another surface, and a temperature control unit that increase the temperature of the second preheating unit from a normal temperature to a target temperature, in response to a printing preparation instruction received in a temporary printing stop state from the control device. The control device starts printing, when the temperature of the second preheating unit reaches the target temperature. The temperature control unit decreases the temperature of the second preheating unit from the target temperature to the normal temperature, when the recording medium is conveyed by a length from a deformed portion to the second preheating unit.

Abstract: An image forming apparatus includes toner image forming units that are arranged in a line at two end portions and at an intermediate portion of the line, each of the toner image forming units forming a toner image; an image transfer body to which the toner images formed by the toner image forming units are transferred; pressing members that are linearly arranged so that each of the pressing members faces a corresponding one of the toner image forming units with the image transfer body therebetween, each of the pressing members applying a pressing force to the image transfer body; and a fixing unit that fixes the toner images on a recording member. The pressing forces applied by the pressing members that are disposed at the two end portions are smaller than the pressing force applied by the pressing member that is disposed in the intermediate portion.

Abstract: A sheet-fed duplex and a sheet-fed duplex multi-color printer which is compact, using an electrophotographic printing system. For a long image to be printed on both faces of a sheet of paper, the printer enables producing printed matter at high efficiency and high precision, and yet when printing front and rear faces of a sheet of paper in succession the printer is able to prevent a printing face of the sheet of paper printed on upstream in its conveyance direction from becoming soiled by toner transferred from a printing face of the sheet of paper printed on downstream in its conveyance direction.

Abstract: According to one embodiment, a computer implemented method of printing data is provided, the method comprising identifying whether a single- or a double-sided printer is operatively connected to the computer, identifying whether single- or double sided media is installed in the printer, and selecting a mode of operation for the printer based on whether it is identified as a single- or a double-sided printer and whether single- or double-sided media is identified as being installed therein. Variations are provided.

Abstract: A printing device includes at least one printing engine that has many sensors (first sensors and second sensors) and at least one engine controller operatively connected to the printing engine. The engine controller uses software to control operations of the printing engine. Also, at least one non-volatile memory is operatively connected to the engine controller. The non-volatile memory stores values used by the engine controller to control operations of the printing engine. At least one adapter card is operatively connected to the non-volatile memory and to the first sensors and second sensors. The first sensors correspond to the design of the controller and are items designed as original equipment of the printing device. To the contrary, the second sensors correspond to the design of the adapter card and are items designed to be installed in the printing device after the printing device is in post production, customer service.

Abstract: An image processing apparatus is provided which performs a correction process in such a manner that a geometrical arrangement of images of a plurality of pages of image data is approximated to a predetermined appropriate geometrical arrangement. The image processing apparatus causes a display to display a list of information indicating degrees of correction on the individual pages to be performed by an image processing portion.

Abstract: An image forming apparatus includes a determination unit determining whether an amount of colorant remaining in a container is equal to or greater than a threshold value and a control unit causing a print unit selectively to perform plural double-side printing methods in which at least one of the number of one-side printed sheets N and the number of opposite-side printed sheets M is different. When the determination unit makes a negative determination, the control unit performs a negative selection process of selecting a double-side printing method satisfying at least one condition of a condition that the number of one-side printed sheets N is smaller than that when the determination unit makes an affirmative determination and a condition that the number of opposite-side printed sheets M is greater than that when the determination unit makes the affirmative determination.

Abstract: An image forming device including a first image forming unit, a second image forming unit, an assignment unit and a reporting unit is provided. The first image forming unit forms images on one face of a recording paper. The second image forming unit receives the recording paper from the first image forming unit and forms images on the other face of the received recording paper, and performs image formation of a type that differs from the image formation performed by the first image forming unit. The assignment unit assigns logical pages of image data of a printing target to the first image forming unit or the second image forming unit. The reporting unit reports image forming information indicating what type of image formation is to be performed on each of the assigned logical pages of the image data.

Abstract: An image forming apparatus having a duplex automatic document feeding (DADF) function, and a control method thereof includes a DADF unit to feed a document along a duplex path, an image scanning unit to scan the document and output scan data, a storage unit to temporarily store the output scan data, and a controller to control the DADF unit to re-scan a first side of the document using the duplex path, if a full memory error occurs while the first side of the document is scanned.

Abstract: A toner image can properly be transferred onto the second side of a paper sheet without being influenced by the toner image on the first side. There are provided a detection unit 20 for detecting overlap of the toner images on the first side and the second side of the paper sheet based on image data, and a transfer output adjustment unit 22 which changes a transfer voltage output for the second side in an area with the overlap of the toner images depending on the toner adhering amount of the first side.

Abstract: A method of controlling the inverter dwell time of the first print engine in order to print any sheet size within a pitch mode without the need for a belt sync dead-cycle. The method uses a small nominal inverter dwell time based on the maximum sheet size for a given pitch mode. For any sheet size within the pitch mode that is smaller than the maximum sheet size, the inverter dwell time will increase proportionally.

Abstract: A digital printing system employing tandem marking engines for duplex printing utilizing a variable dwell time in the output sheet inverter of the first marking engine to provide correct positioning of the leading edge of the inverted sheet for arrival at the entrance of the second marking to avoid the seam in the photoreceptor.

Abstract: An image forming apparatus includes a belt, an image forming section, a displacement operation section and a displacement control section. The image forming section includes a color image forming unit and a monochrome image forming unit. The displacement operation section conducts a press-contact operation and a release operation. The press-contact operation brings into contact the image carrier and the belt. The release operation separates the image carrier from the belt. The displacement control section controls the displacement operation section to perform the press-contact operation when the cumulative number of color images is greater than the cumulative number of monochrome images after the image forming section forms a series of images. The displacement control section controls the displacement operation section to perform the release operation when the cumulative number of color images is less than the cumulative number of monochrome images after the image forming section forms a series of images.

Abstract: An image forming apparatus is configured to select one of electrically discharging of an intermediate transfer member carried out by applying a voltage to a primary transfer member and electrically discharging of the intermediate transfer member carried out by applying a voltage to a secondary transfer member according to a charged state of the intermediate transfer member after secondary transfer.

Abstract: A tandem type color image forming apparatus, which can continuously form color images each containing two or more colors, including: a signal creating section having, for each color, two or more image area setting counters for generating an image valid area signal to set a starting position and a width of an image formation area in a sub-scanning direction; and a control section for executing color image formation control on a predetermined face of paper, based on an image top signal for controlling writing of an image on an image carrier and the image valid area signal for each color, wherein the control section sets each of the outputs of the image area setting counters independently according to a preset image formation mode, and selects and controls one of the image area setting counters for each image formation of each color.

Abstract: A beverage server assembly and a base for elevating a beverage container. The beverage server assembly includes the base including extensions and a connecting portion defining a nesting area therein. The nesting area defines an opening. A drip tray assembly can be removably retained in the nesting area. The drip tray assembly includes a drip tray with a removable grate. The nesting area is sized in dimension for use with the drip tray assembly or with the grate without the drip tray. The server assembly can be positioned with the faucet extending over a drain to allow liquid to flow from the faucet to the grate, through the opening and to the drain without collection in the drip tray.

Abstract: A method for forming a color image that allows a color image forming device to detect print chromaticity by an actually used print medium and automatically perform an optimal color balance adjustment in consideration of the chromaticity of the print medium. At a first step of the method, it is determined whether a feeder is selected for a subsequent printing operation. If selected, the process proceeds to a second step. If not selected, it is determined that the printing operation is not performed for some time and the process is completed without color balance adjustment. At the second step, a print medium for printing a test pattern is fed from the feeder selected for a subsequent printing operation, which is determined at the first step. A color sensor detects the chromaticity of the test pattern transferred and fused on the print medium, and the color balance is then adjusted.

Abstract: An image forming apparatus includes an image holding member, a toner image forming unit, a color forming information applying unit, a transfer unit, a fixing unit and a color forming unit, the color forming information applying unit exposing a toner image formed on a surface of the image holding member from a back surface side of the image holding member, light transmitted through the image holding member applying color forming information to the toner image.

Abstract: An image forming apparatus and corresponding method, the image forming apparatus including a belt member supported by at least two rollers, an image forming member configured to form a patch pattern of image data on a surface of the belt member, a belt supporting member configured to support the belt member on a contact area thereof with respect to the belt member at a position higher than a tangent line of the at least two rollers, and a sensor configured to detect the patch pattern formed on the surface of the belt member at the contact area of the belt supporting member and the belt member.

Abstract: Methods are presented in which one or more pages of a print job are segmented into two or more parts, with the first part being transferred and affixed to the printed medium prior to transferring and affixing the second part, in order to facilitate high TMA (pile height) printing while mitigating adverse retransfer, blur, fusing, and hollow character effects.

Abstract: Provided is a document copier having an input transport mechanism and an output transport mechanism linked via a media path, the mechanisms configured to feed sheets of media through the media path. Also included is a print engine located in the media path for printing on media fed through the media path, and a code sensor arranged before the print engine in the media path, said sensor configured to capture images of a sheet surface. The copier also includes a controller for controlling the transport mechanisms, the print engine and code sensor. The controller decodes optical patterns found in the captured images to obtain one or more codes able to identify an electronic source where an electronic copy of the sheet is stored, and to print the electronic copy on a blank sheet of media with the print engine.

Abstract: Document processing systems and methods are presented in which one or more pages of a print job are segmented into two or more parts, with the first part being transferred and affixed to the printed medium prior to transferring and affixing the second part, in order to facilitate high TMA (pile height) printing while mitigating adverse retransfer, blur, fusing, and hollow character effects.

Abstract: An image forming apparatus including a plurality of image bearing members, an electrostatic image forming device for forming an electrostatic image on the image bearing members, a plurality of developing devices for developing as developer images the electrostatic images formed on the plurality of image bearing members by using developer charged to a predetermined polarity, a primary transferring device for primarily transferring the developer images borne by the plurality of image bearing members to an intermediate transfer member at a plurality of primary transfer portions, a secondary transferring device for secondarily transferring the developer images primarily transferred to the intermediate transfer member to a recording material at a secondary transfer portion, a cleaning device for cleaning the developer on the intermediate transfer member, and a controlling device for, when a secondary untransferred developer image, which is a developer image that has not been secondarily transferred after the prima

Abstract: An image formation system is configured by connecting two or more image formation devices. The system includes a fixing device fixing an unfixed development image to a record medium and a charge elimination device eliminating a charge of the record medium in an inlet of the fixing device of the second or later image formation device.

Abstract: A recording apparatus, in which a recording medium is fed from one side of the recording apparatus, and the recording medium that has been recorded is ejected from the one side of the recording apparatus, is capable of making its size when not in use smaller than the size when in use and also achieving a reduction in the depth dimension of the recording apparatus as compared with the case where a feed tray and a discharge tray are rotary storage trays. The recording apparatus includes a feed tray on which a recording medium is stacked and which is rotated to move between an in-use position and a stowed position, and an eject tray on which the recording medium that has been recorded is stacked and which moves between an in-use position and a stowed position in a discharge direction of the recording medium.

Abstract: An image forming apparatus that forms an image on a surface of a transfer sheet, then, reverses the transfer sheet on which the image has been formed on the surface and then, forms an image on the reverse side of the transfer sheet, wherein there is provided a correcting section that changes a relative position between the transfer sheet and the image on the surface in accordance with an outer shape of the transfer sheet and further changes a relative position between the transfer sheet and the image on the reverse side of the transfer sheet in accordance with an outer shape of the transfer sheet.

Abstract: An image forming apparatus having therein an image forming device that transfers an image onto a transfer sheet and a reversing device that reverses the transfer sheet, wherein the image forming device transfers an image on the front surface of the transfer sheet, then, the reversing device reverses the sheet, and the image forming device transfers an image onto the rear surface of the sheet and the image forming apparatus further has therein a correcting device that corrects the overall skew of the transfer sheet depending on an inclination of a leading side of a transfer sheet in the conveyance direction set in advance before an image is formed on the front surface, and corrects the overall skew of the transfer sheet depending on an inclination of a leading side of a transfer sheet in the conveyance direction set in advance before an image is formed on the rear surface.

Abstract: Provided is a document copier having an input transport mechanism and an output transport mechanism linked via a media path, the mechanisms configured to feed sheets of media through the media path. Also included is a print engine located in the media path for printing on media fed through the media path, and a code sensor arranged before the print engine in the media path, said sensor configured to capture images of a sheet surface. The copier also includes a controller for controlling the transport mechanisms, the print engine and code sensor. The controller decodes optical patterns found in the captured images to obtain one or more codes able to identify an electronic source where an electronic copy of the sheet is stored, and to print the electronic copy on a blank sheet of media with the print engine.

Abstract: A switchback transport mechanism includes a first transport section, a second transport section, a third transport section, and a transport control section. The first transport section applies propelling force to a sheet in the guiding path. The second transport section applies propelling force to a sheet in the ejecting path. The third transport section has a first transport member and a second transport member placed so as to be attached to and detached from each other. The third transport section selectively applies propelling forces in a frontward direction and a backward direction to a sheet in the switchback transport path through the first and second transport members. The transport control section controls operations of the first, second, and third transport sections. The transport control section detaches the first and second transport members from each other in a time period when no sheet is being transported by the third transport section.

Abstract: An imaging system includes a plurality of imaging engines each comprising a photoreceptor belt having a belt seam. A sensor determines a relative position of a first photoreceptor belt of a first one of the imaging engines relative to a second photoreceptor belt seam of a second one of the imaging engines. A controller controls a motor speed of one or more motors driving the photoreceptor belts, wherein an output of the sensor comprises a basis for adjustment of the motor by the controller for relative synchronizing of the first and second belts to avoid skipping pitches in one of the imaging engines due to relative belt seam positions.

Abstract: An image forming apparatus which has means for permitting transfer members to be impressed with respective optimal transfer voltages without increasing the manufacturing cost. In the image forming apparatus, a transfer belt is driven to rotate, and a plural number of photosensitive drums, which bear toner images, are arranged side by side in the rotating direction of the transfer belt. A plural number of transfer members are located opposite from the respective photosensitive drums via the transfer belt. The transfer members charge the transfer belt with a polarity opposite to the polarity of the toner. The gap in the rotating direction of the transfer belt between the photosensitive drum and the transfer member in the most upstream transfer section is the largest, and the gap in the rotating direction of the transfer belt between the photosensitive drum and the transfer member in the most downstream transfer section is the smallest.

Abstract: A method for achieving accurate page margins on a media and a duplex imaging apparatus thereof. The method comprises: detecting a leading edge position by an edge sensor and a first left-to-right position of the media by an alignment sensor in a first imaging path; imaging a first side of the media in a print zone of the duplex imaging apparatus; removing the media from the print zone and disposing the media in a second imaging path; detecting a leading edge position by the edge sensor and a second left-to-right position of the media by the alignment sensor; determining a carrier reset distance by calculating a difference between first and second left-to-right positions, and shifting a print image by a distance substantially equal to the carrier reset distance thereby achieving accurate page margins for imaging a second side of the media with the print image. In another embodiment, the first left-to-right position can be determined by feeding the media into a preset first left-to-right position.

Abstract: An image forming apparatus includes an image bearing member, which rotates and bears a toner image, a thickness of the image bearing member having a periodical variation in a rotation direction of the image bearing member, a first image forming device, which forms a toner image on the image bearing member at a first region with a first toner; and a second image forming device, which forms a toner image on the image bearing member at a second region with a second toner. A distance between a central position of the first region in the rotation direction of the image bearing member and a central position of the second region in the rotation direction of the image bearing member is approximately integer multiples of a periodical length in the periodical variation of the thickness of the image bearing member.

Abstract: A color image forming apparatus includes an intermediate transfer member, a first forming portion having a first transfer unit, a second forming portion provided downstream from the first forming portion, a third forming portion provided downstream from the second forming portion, a fourth forming portion provided downstream from the third forming portion, and a control portion. The control portion controls a bias of at least one of the corresponding developing unit and the corresponding transfer unit, when transfer of the toner image from the intermediate transfer member to the recording medium is completed, so that a toner-image residue toner material resting on the intermediate transfer member is returned to the corresponding developing unit through the image bearing member of at least one of the first to fourth forming portions.

Abstract: An imaging system may use electrophotographic processes to synchronously image on both sides of a receiver material, such as in a single pass of the receiver material through the imaging system. The system may include intermediate transfer members, which may be split rollers or non-split rollers. The intermediate transfer members may hold one image, or they may be 2-up or greater rollers that hold multiple images.

Abstract: An image forming apparatus includes first and second toner image forming sections and a transfer unit. The first and second toner image forming sections include first and second image carriers and first and second intermediate transfer members, respectively. The color toner images are formed on the image carrier and then transferred onto the intermediate transfer member to form a composite color toner image on the intermediate transfer member. In a first mode, the first and second toner image forming sections form both the composite dark and light color toner images on the recording material. In a second mode, the second intermediate transfer member is moved out of contact with the transfer unit and the second image carrier and the second intermediate transfer member are not operated, so that only the first toner image forming section forms the composite dark color toner image on the recording material.

Abstract: An image forming apparatus includes an executing portion, which executes a first removing sequence and a second removing sequence when removing a toner image borne on an intermediate transfer member. The first removing sequence passes the toner image through a primary transfer portion, which is applied with a voltage having a same polarity as the predetermined polarity, and thereafter removing the toner image by the removing portion which forms a cleaning electric field. The second removing sequence removes the toner image by the removing portion, which forms the cleaning electric field, without passing the toner image through the primary transfer portion. A selecting portion means selects between the first removing sequence and the second removing sequence in accordance with a toner amount per unit area of the toner image borne on the intermediate transfer member at a stoppage of the intermediate transfer member.

Abstract: An image forming apparatus has a plurality of developing units for developing toner images of different colors, an intermediate transfer belt for transferring the toner images of the respective colors onto a surface of the belt or onto a recording sheet transported over the belt surface, a first or drive roller for driving the belt while the belt is wound around the first roller, a second or driven roller and a tension roller, which is driven along with the driving of the belt driven by the first roller. The image forming apparatus satisfies a relation defined by the following equation: D2=N·D1 where D1 is a belt-inclusive outer diameter of the first roller where the belt is wound, including the thickness t of the belt, D2 is an outer diameter of the second roller, and N=n or 1/n where n is a positive integer.

Abstract: An imaging system may use pulsed dc voltages to synchronously image on both sides of a receiver material, such as during a single pass of the receiver material through the imaging system. The imaging system may use electrophotographic processes to image on the receiver material. Alternatively, the imaging system may use directed charged particle or aerosol toner development processes to image on the receiver material.

Abstract: To provide an image forming apparatus including a first image bearing member, first toner image forming means which forms a first toner image on the first image bearing member, an intermediate transfer member in which a circumferential face is formed, the circumferential face rotates in a predetermined direction by using the center of the circumferential face as a rotating center and the thickness is periodically changed at a predetermined interval in the predetermined rotating direction, a first primary transfer region in which the first toner image on the first image bearing member is transferred to the intermediate transfer member, a second image bearing member and a second primary transfer region in which the toner image on the second image bearing member is transferred to the intermediate transfer member to which the first toner image is transferred, in which the distance between the central position of the first primary transfer region and the central position of the second primary transfer region in th

Abstract: An automatic document feed device having reading means for stopping a conveyed document to a reading position on a platen and sequentially reading images of two sides of the document one side by one, includes an adjusting unit, provided upstream of the reading position on the platen, for adjusting an edge of the document, wherein the adjusting unit have a function for adjusting the edge of the document which is fed to read one side, and for reversing the document through the platen and adjusting the edge of the document which is fed again to read the other side of the document. A feed unit includes one of feed guide members and a feed roller in the feed path. The feed path unit is rotatably supported, thereby enabling the feed path to open.

Abstract: Provided is a duplex printer and method of duplex printing. The duplex printer and method of printing includes a paper feeding belt that is vertically installed to form a first vertical surface; a photosensitive drum that is installed to contact the first vertical surface; and a transfer roller that is installed to contact an other surface of the first vertical surface contacting the photosensitive drum to transfer a toner image from the photosensitive drum onto a sheet of paper, which is supplied between the photosensitive drum and the paper feeding belt. A back surface feeding path of the paper is formed at an opposite side of the photosensitive drum in the paper feeding belt, and the paper is conveyed closely adhered to a surface of the paper feeding belt in the back surface feeding path of the paper.