Abstract: An electrophotographic printing system for printing with a set of toners including a white toner. A plurality of printing modules are configured to print respective toner patterns, each including a toner image printed onto a receiver medium being transported on a transparent transport web and a corresponding registration mark positioned outside a border of the receiver medium. A first registration mark sensing system is positioned to detect the registration marks printed with a first subset of the toners that doesn't include the white toner. A second registration mark sensing system is positioned to detect the registration marks printed with a second subset of the toners that includes the white toner. The registration mark sensing systems each include a reflector plate positioned behind the transport web. The reflector plate for the first registration mark sensing system is white, and the reflector plate for the second registration mark sensing system is black.

Abstract: An electrophotographic printing system for printing with a set of toners including a white toner. A plurality of printing modules are configured to print respective toner patterns, each including a toner image printed onto a receiver medium being transported on a transparent transport web and a corresponding registration mark positioned outside a border of the receiver medium. A registration mark sensing system is positioned to detect the printed registration marks. The registration mark sensing system includes a light detector positioned to detect light that is emitted by a light source, transmitted through the transport web and reflected off a non-white colored reflector plate positioned behind the transport web. The colored reflector plate has a color that provides detection signals for the registration marks having a magnitude that is greater than or equal to a predefined threshold.

Abstract: An apparatus can obtain an amount of color misregistration based on a plurality of test images. Among these test images, the first test image has one line segment of a first color and another line segment of the first color. The second test image has one line segment of the first color and another line segment of a second color or has one line segment of the second color and another line segment of the first color. The third test image has one line segment of the second color and another line segment of the second color. The fourth test image has one line segment of the second color and another line segment of a third color or has one line segment of the third color and another line segment of the second color. The fifth test image has one line segment of the third color and another line segment of the third color.

Abstract: A belt examination system includes a defect candidate detecting processor that detects a candidate for a belt defect that is an abnormal portion of an intermediate transfer belt of an image forming apparatus from a belt image that is an image of the intermediate transfer belt, the defect candidate detecting processor executes a background pattern reduction step to reduce a texture-pattern like background noise present in the belt image and detects the candidate based on the belt image generated during the background pattern reduction step, and the background pattern reduction step is to replace, in the belt image, a color value within a specific range of color values not including a lowest color value of the belt defect with a specific color value within the specific range.

Abstract: An editor controls a display of an edit screen for editing a print content to a tape to prepare a label having an object printed on the tape and a light transmission at least in a part of the label. A controller of the editor displays a label frame indicative of an outer shape of the label on the edit screen, designates a color of a substrate on which the label is arranged, displays an area in the label frame corresponding to a first part having a light transmission of the label with a color of the substrate designated in the substrate color designating processing, and displays the object in the area.

Abstract: An image forming apparatus includes a casing having a front end and a rear end, a first tray, a first print engine, a second tray, a second print engine and a controller. The controller configured to perform: receiving first image data representing the first image and second image data representing the second image; executing a first process including a first conveying process and a first recording process; executing a second process including a second conveying process and a second recording process; determining whether an error has occurred in the second process; and in a case where the error has occurred in the second process, stopping the second process while continuing the first process.

Abstract: An image forming apparatus includes a photoconductive drum, a developing roller, a humidity sensor configured to detect a humidity, and a controller configured to execute a single-side printing, a first-double-side printing and a second double-side printing. The controller is configured to execute the first double-side printing in which images are printed at a first developing-bias voltage on both the first surface and the second surface of the sheet when the humidity detected by the humidity sensor is greater than a threshold value. The controller is configured to execute the second double-side printing in which an image is printed at a second developing-bias voltage, which is less than the first developing-bias voltage, on the second surface of the sheet when the humidity detected by the humidity sensor is equal to or less than the threshold value.

Abstract: An image forming apparatus includes a transfer belt, a forming unit, a detection unit, a correction unit, a drive system, a determination unit, and a notification unit. The forming unit forms an image-misregistration detection pattern of a plurality of colors on the belt. The correction unit corrects an image misregistration of an image of each color based on a detection result of the pattern. The determination unit detects a difference amount between a pattern interval of the pattern on the belt and a pattern interval serving as a reference value for each color and determines that an abnormality has occurred in a driving state of the drive system, in response to the difference amount equal to or greater than a threshold value. The notification unit notifies occurrence of the misregistration when the determination unit determines that the driving state is abnormal, based on the difference amount of any one color.

Abstract: In some examples, a device includes a printing device to generate an image on a substrate from a digital image, and a processor to: receive a scanned image of the image on the substrate, identify a plurality of image portions of the scanned image, identify horizontal color changes across a horizontal portion of the plurality of image portions, identify vertical color changes across a vertical portion of the plurality of image portions, compare the horizontal color changes and vertical color changes to corresponding horizontal color changes and corresponding vertical color changes of the digital image, and measure a presence of color plane misregistration, and the color, direction and magnitude of misregistration based on the comparison.

Abstract: An image processing apparatus includes a processing unit that shifts plural pieces of pixel data so as to suppress deviation in a sub-scanning direction at the time of image formation; a storage unit that stores the plural pieces of pixel data; and a converting unit that converts addresses of the plural pieces of pixel data such that a predetermined number of pieces of pixel data which are a unit of processing of the shift process are stored in a cache memory used by the storage unit at once.

Abstract: A cartridge configured to be attachable to an apparatus main body of an image forming apparatus includes a first unit including a photosensitive drum, a second unit attached to the first unit and including a developing roller, and a second frame member including a toner storage portion and including a toner reception port, the toner storage portion including a first end portion and a second end portion in a rotational axis direction of the photosensitive drum, the toner reception port provided in the first end portion, a toner container configured to be attachable to the second unit, the toner container including a toner discharge port configured to discharge the toner to the toner storage portion through the toner reception port, and a memory, the memory provided in an end portion of the cartridge on the same side as the second end portion of the toner storage portion.

Abstract: The ink jet device is provided with a plurality of ink jet heads including a plurality of nozzles disposed linearly with each other at intervals in a predetermined longitudinal direction and ejecting ink in different regions each other in the printing width direction; and a position adjusting mechanism performing rotating operation of changing the intervals in the printing width direction of the nozzles by rotating the plurality of ink jet heads around an axis perpendicular to the print surface of the print object, and performing a shifting operation of shifting at least one of the plurality of ink jet heads in the printing width direction.

Abstract: An example consumable print device component may include a surface and a human-indiscernible hardware-based identifier arranged on the surface.

Abstract: An image forming apparatus includes a rotatable photosensitive drum together with first and second chips which include plural light emission elements arranged along a rotational axis of the photosensitive drum so as to expose the photosensitive drum to light emitted therefrom for each of one line extending along the rotational axis. Parts of the first and second chips overlap in a direction perpendicular to the rotational axis. A controller controls actuation of said light emitting elements on the basis of image data, wherein for the overlapped parts, the light emission pattern is controlled to be different for every predetermined number of the lines.

Abstract: A method for correcting cross-track position errors in a digital printing system having a linear printhead includes printing a test target including a plurality of alignment marks. A data processing system is used to automatically analyze a captured image of the printed test target to determine a measured position for each of the alignment marks. The measured positions for the alignment marks is compared to reference positions to determine measured cross-track position errors. A cross-track position correction function is determined responsive to the measured position errors, wherein the cross-track position correction function specifies cross-track position corrections to be applied as a function of cross-track position. A corrected digital image is determined by resampling the image lines of a digital image responsive to the cross-track position correction function.

Abstract: An angle sensor includes a detection signal generation unit for generating detection signals, an angle detection unit for generating a detected angle value on the basis of the detection signals, and a condition determination apparatus. The condition determination apparatus includes a determination value generation unit for generating a determination value to be used for determining the condition of the angle sensor, and a determination unit for determining the condition of the angle sensor. The angle detection unit includes a common correction processing unit for performing common correction processing for converting uncorrected signals, which have correspondence with the detection signals, into common corrected signals to be used for the generation of the detected angle value and the generation of the determination value. The common correction processing reduces an angular error occurring in the detected angle value, and narrows the variation range of the determination value.

Abstract: An image inspection system including: an image forming apparatus that forms an image on a sheet; an image reading apparatus that reads the image formed on the sheet through the image forming apparatus; and an image inspector that inspects the image read by the image reading apparatus. The image inspector includes a hardware processor that sets an edge portion of the sheet as an image inspection excluded area that is excluded from targets for inspection of the image.

Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.

Abstract: A data acquiring portion acquires a plurality of pieces of second data having different levels depending on amounts of light incident on the light reception portions upon reception of a specific linear light having a specific amount of light. A level acquiring portion acquires a maximum level and a minimum level from among the levels of the plurality of pieces of second data. A characteristic data storage portion preliminarily stores characteristic data that indicates levels of the plurality of pieces of second data. A light amount deriving portion executes a light amount deriving process to derive a set light amount of the linear light based on a threshold, the maximum level, the minimum level, and the characteristic data. A second light emission control portion causes the light emission portion to emit linear light having the set light amount.

Abstract: An image processing device includes a reception unit and a setting unit. The reception unit receives an input image signal, and a synchronization signal used to generate an output image signal on a basis of the input image signal. The setting unit sets, after the reception unit receives the synchronization signal, a reception prohibition period that prohibits reception of a different synchronization signal by the reception unit.

Abstract: In an image forming apparatus, a transfer material transport guide is disposed in an optical sensor unit to support a color deviation sensor, which is disposed near an intermediate transfer belt. By changing the position of the optical sensor unit, the grounding path of the transfer material transport guide can be changed, and both transfer bias leak prevention for the transfer material transport guide and electrostatic breakdown prevention for the color deviation sensor can be implemented. As a result, the apparatus can be downsized, and when the intermediate transfer belt is replaced, the optical sensor unit can be moved to create a space necessary for the replacement.

Abstract: Examples described herein include methods and devices for systems that include a conveyor belt comprising an exterior surface and an interior surface, an embedded optical sensor disposed proximate to the interior surface of the conveyor belt to optically detect movement of the conveyor belt, and a driver to move the conveyor belt based on the detected movement of the conveyor belt.

Abstract: An optical print head including light emitting elements, drivers, setters, a detector, and a generator. The detector is for detecting a noise component superimposed on a luminance signal, on transmission circuitry for transmitting the luminance signal from a setter to a driver, in a state in which the setter is outputting the luminance signal. The generator, for each light emitting element due to emit light in a line subsequent to a line for which the detector detected the noise component, generates and causes a setter corresponding to the light emitting element to output an adjusted luminance signal such that the light emitting element emits a light emission amount according to image data in a state in which the noise component detected by the detector is superimposed on the adjusted luminance signal.

Abstract: An image forming apparatus includes multiple image bearers, multiple image bearer gears, a drive source, an output gear, a drive transmission body, multiple relay gears, and multiple drive gears. A center of rotation of each of the multiple drive gears to which a driving force is transmitted from the drive source is located downstream from a corresponding one of the multiple relay gears in a rotation direction of the corresponding one of the multiple relay gears, relative to a virtual line segment connecting a center of rotation of the corresponding one of the multiple relay gears connected to the multiple drive gears and the center of rotation of a corresponding one of the multiple image bearer gears.

Abstract: An image processing apparatus includes circuitry to acquire input image data, perform image conversion on the input image data to generate the output image data corresponding to each of a plurality of output conditions, and calculate a color feature amount that is a change amount of color characteristics of each pixel from the input image data and the output image data before and after the image conversion. The circuitry calculates cost information indicating cost of the output image data corresponding to each of the plurality of output conditions, based on the plurality of output conditions and the output image data, and calculates cost effectiveness with reference to the color feature amount, the cost information, and a weighting table in which weights for items of the plurality of output conditions are set, to determine one output condition of the plurality of output conditions to be used for output.

Abstract: An image forming apparatus includes a controller configured to control first and second image forming units to form a plurality of groups of detection images, the plurality of groups of detection images being scaled based on a scaling factor, determine a plurality of detection start timings that respectively correspond to the plurality of groups based on the scaling factor, control a detection unit to detect the plurality of groups based on the determined detection start timings, and control the detected misregistration of a first image to be formed by the first image forming unit and a second image to be formed by the second image forming unit.

Abstract: Conventionally, it has been impossible to adjust a transportation direction magnification correspondingly to jobs, causing an image to be formed in an unintended size, while the transportation direction magnification for the image formed on the sheet varies with jobs. A controller included in an image forming apparatus selects an image adjustment chart used to adjust a transportation direction magnification that varies with job conditions of a job to be executed currently in a transportation direction of images transferred to sheets by a transferrer. The controller adjusts the transportation direction magnification for images formed by an image former based on the image adjustment chart formed on a sheet by the image former.

Abstract: A method for compensating substrate shrinkage during printing on a printing machine includes generating multiple image parts of a digitally available image to be produced, factoring in information on substrate shrinkage by subdividing the image using a computer, subdividing generated image parts into data blocks using the computer, saving actual positions of blocks in the digital image using the computer, calculating target positions of all blocks in the digital image using the computer by shifting the blocks away from one another by one pixel creating single-pixel-wide gaps between blocks in the digital image, copying and rearranging blocks in the digital image according to calculated target positions using the computer, calculating positions of single-pixel-wide gaps using the computer, filling gaps with digital image data of neighboring pixels using the computer to create a compensated digital image. The compensated digital image is printed on the printing machine.

Abstract: A belt device includes a movable belt, a detection target, an optical detector, and a cleaner. The belt is looped around a plurality of supporting members. The detection target is disposed extending along a direction of belt movement on at least one side of the belt in a width direction of the belt intersecting with the don of belt movement. The optical detector detects the detection target. The cleaner is attached to at least one of the plurality of supporting members to clean the detection target.

Abstract: An image forming apparatus includes: a housing in which a light source, a laser scanning member, a light detecting portion configured to detect light incident on a predetermined position in a scanning path of the light scanned by the laser scanning member, and a scanning lens configured to cause the light scanned by the laser scanning member to be scanned at an equal speed on an image carrier, are disposed; a temperature gradient detecting portion, configured to detect a temperature gradient of the housing, a heater configured to heat the image carrier or a sheet; and a correction processing portion configured to correct the emission start timing based on the temperature detected by the temperature gradient detecting portion, and a predetermined expression, and change content of the expression based on an operation state of the heater at a start of an image formation process.

Abstract: An image forming apparatus operable at a plurality of image forming speeds includes a pattern detection unit configured to detect a registration correction pattern at a first image forming speed, a writing start timing determination unit configured to determine writing start timing at which an electrostatic latent image is started to be written on a photosensitive member by a light beam emitted from a light source, and a storage unit configured to store in advance a correction amount for correcting the writing start timing. When the image forming apparatus operates at the first image forming speed set in advance, an image is formed at the writing start timing determined by the writing start timing determination unit. When the image forming apparatus operates at a second image forming speed, an image is formed at a writing start timing corrected based on the correction amount and a speed ratio.

Abstract: A method for registering a printing press, said printing press including a plurality of printing stations each for printing a respective color-image on a web, each said printing stations being associated with a respective different color, at least two pairs of said printing stations being un-registered, the method includes the procedures of identifying at least two regions-of-interest in the image to be printed, each including a respective different pair of two partially overlapping color-images, acquiring an image of the common area on the web, for each region-of-interest, chromatically separating the acquired image to determine two monochrome images respective of each region-of-interest, for each region-of-interest registering the two monochrome images respective thereof, registering a monochrome image respective of one region-of-interest with a monochrome image respective of another region-of-interest and determining a registration correction for each printing station according to the registration between

Abstract: A belt drive and a method for the monitoring thereof allows conclusions to be drawn regarding loads to which the belt has been subjected over its past usage period. The method includes a rotatably mounted disc and a belt which is deflected at the disc. The belt and the disc are equipped with a marking and are positioned with respect to each other such that the markings are directly opposite each other in a trigger position when the belt circulates around the disc. The trigger position is recorded by a monitoring device, which emits a signal when the markings are located in the trigger position. The number of signals triggered over a time period is recorded. The loads to which the belt or the disc have been subjected during the time period is determined while taking into consideration relevant influencing variables.

Abstract: A printing system includes a first imaging unit configured to print a first image and a registration mark associated with the first image on a web contemporaneously during a production run, and a sensor configured to detect the registration mark at a point where the registration mark is within a second imaging unit. The printing system further includes a controller configured to calculate an offset along a width direction of the web based on the registration mark and to instruct the second imaging unit to print the second image on the web. The second image is shifted in its entirety in accordance with the calculated offset and is printed on the same side of the web as the first image.

Abstract: In one embodiment, a device for a printer includes a movable tray for supporting a print media. The tray is movable between an open position in which media may be moved on to the tray and a closed position in which media is blocked from moving on to the tray. The device also includes a rotatable media drive component for moving print media on to the tray and a movable restraint operatively connected to the tray. The restraint is movable between: a first position, corresponding to the open position of the tray, in which the restraint does not restrain the media drive component; and a second position, corresponding to the closed position of the tray, in which the restraint restrains rotation of the media drive component.

Abstract: An image forming apparatus includes a printing unit configured to print a chart in which patterns, each including an image object in a first process color and an image object in a second process color, are arranged at each of at least three positions in a main scanning direction, a receiving unit configured to receive, from a user, a plurality of pieces of information relating to correction of a color shift between the first process color and the second process color, the plurality of pieces of information being based on the patterns arranged in the printed chart and each corresponding to a different one of the at least three positions, and a correction unit configured to correct the color shift between the first process color and the second process color based on the received plurality of information.

Abstract: According to an example, an apparatus for controlling a media scan operation may include a first scan module to scan a section of a media, a tracking mechanism to track the media as the media is moved past the first scan module, and a controller. The controller may receive signals corresponding to the media movement from the tracking mechanism, determine, based upon the received signals, a current position of the media, and vary a timing at which the first scan module collects a scan of the section of the media based upon the determined current position of the media.

Abstract: An image forming apparatus includes an image forming section, a sensor and a control section. The image forming section forms a first image with at least two kinds of developing agents with different fixation properties. The sensor detects the first image formed on an image formed section by the image forming section. The control section amends deviation of the first image on the image formed section by the image forming section when a detection result of the sensor that the first image formed by the image forming section is not formed at a predetermined position of the image formed section.

Abstract: A misalignment/alignment compensation method for a lithography process includes the steps of: obtaining misalignment data associated with an alignment mark disposed on a substrate; and obtaining a compensation parameter by performing asymmetry compensation calculation on at least one of a first directional component of the misalignment data, which is associated with a first direction, and a second directional component of the misalignment data, which is associated with a second direction.

Abstract: An image forming apparatus is provided. The image forming apparatus includes: a plurality of photosensitive drums; a plurality of exposurers exposing some area of surfaces of each of the plurality of photosensitive drums; a plurality of developers disposing a toner in the exposed area on the surfaces of each of the plurality of photosensitive drums; an intermediate transfer belt transferred with the toner disposed on each of the plurality of photosensitive drums to form a pattern; and a processor controlling the plurality of photosensitive drums or the plurality of exposurers to form a printed pattern on the intermediate transfer belt at a predetermined first concentration in response to a print command being input and form a registration pattern on the intermediate transfer belt at a second concentration lower than the first concentration in response to a registration command being input.

Abstract: Examples disclosed herein relate to front-to-back registration of a printed content onto a print medium. In one example, a trigger signal generated by a sensor upon detection of a trigger mark on a first surface of a print medium is received. The trigger mark includes a leading edge and a trailing edge, wherein the leading edge and the trailing edge are non-parallel. Based on the trigger signal, a distance of the trailing edge from a point on the leading edge is determined. Once determined, a measure of lateral wander of the print medium with respect to the print path is obtained. The measure of the lateral wander is determined by comparing the distance between the leading edge and the trailing edge, with a threshold value.

Abstract: An image forming apparatus includes a plurality of image forming units configured to form images, an image bearing member, a detection unit configured to detect a pattern image formed on the image bearing member, the pattern image being used for detecting a color misregistration, a controller configured to control the plurality of image forming units to form a plurality of first pattern images, each having a different color, and control the detection unit to detect the color misregistration, and a storage unit configured to store data on the color misregistration, wherein the controller corrects an image forming position based on the stored data, and wherein in a case where an error is detected in the data, the controller controls the plurality of image forming units to form a plurality of second pattern images, different form the plurality of first pattern images, before the plurality of first pattern images is formed.

Abstract: An image forming apparatus forms a measurement image on a sheet, moves a carriage to read the measurement image, reads from a storage unit an adjustment condition, generates a correction condition based on the adjustment condition and a result of reading the measurement image, moves the carriage to read an original, generates image data of the original, corrects a position at which an image is formed on a sheet based on the correction condition and forms an image of the original on a sheet based on the corrected image data.

Abstract: An image processing method and image processing device for performing the same are disclosed. In one aspect, the image processing method includes transmitting a content image having a visual condition to a display unit. The method also includes periodically changing the visual condition from a first visual condition to a second visual condition according to a modulation timing such that the content image to be displayed after the modulation timing has the second visual condition different from the first visual condition before commencement of the modulation timing.

Abstract: An image forming apparatus (1) includes a frame (61) supporting an attached object (23) inserted into an apparatus body (2) and an attachment device (62) fixing the attached object (23) supported by the frame (61). The frame (61) includes a leading end plate (61b) facing to a leading end in an inserting direction of the attached object (23). The attached object (23) includes a fixing pin (65) supported by the leading end plate (61b) in advanceable/retreatable state along the inserting direction and formed connectable to the attached object (23), a biasing member (66) biasing the fixing pin (65) toward the inserting direction and a locking member (67) restricting dropout of the fixing pin (65). The attachment device (62) holds the attached object (23) being connected to the fixing pin (65) and receiving the biasing force of the biasing member (67) at a position gravitated to the leading end plate (61b).

Abstract: A media conveyor mechanism for a printing apparatus includes an endless conveyor belt (BT) conveying a medium (M) in a Y direction; a belt driving unit having a first roller and a second roller which are arranged at an interval in the Y direction and parallel to an X direction, on which the conveyor belt (BT) is wrapped, and at least one of which drives the conveyor belt (BT), the first roller being fixed at a predetermined position in the Y direction, and second roller being switchable between a movable state and a fixed state; and an applying unit which applies constant equal force to both ends of the second roller in the X direction in a ?Y direction.

Abstract: Printing a graphic media product is described. The media product has an indicia marked on a media substrate. An installation of a supply of the media substrate is detected. A sensor is activated based on the detection of the installation. The activated sensor measures a width of the installed media substrate. A center position of the media substrate is computed based on the measured width. The marking of the indicia upon the media substrate is aligned relative to the computed center position of the media substrate.

Abstract: An image forming apparatus includes a mirror position adjustment mechanism capable of adjusting a position of a return mirror. The return mirror is used in a state in which its position is adjusted such that a gravity center position of the return mirror is separated from a rotational axis of the return mirror by the mirror position adjustment mechanism in a sub-scanning direction.

Abstract: Paper has a detection pattern having a length in a main scanning direction, the length becoming shorter from upstream to downstream along a paper feeding direction. An image sensor detects the detection pattern and outputs a detection signal including data in the main scanning direction (length y). A control unit calculates a position of a vertex of the detection pattern, by using the detection signal, a feeding speed, an angle being half of the vertex angle of the pattern, and an imaging time, so as to correct an image forming position on the back side to coincide with an image on the front side. The detection signal from the sensor with a low operation speed is processed according to a method utilizing a shape feature and the like of the detection pattern, thereby precisely detecting the position of the paper in the feeding direction.

Abstract: An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.