Abstract: An image forming apparatus includes an image forming unit and a control unit. The image forming unit forms a test image based on test image data. The test image data includes a first image area and a second image area. The first image area is disposed adjacent to the second image area. The first image area is an image area including a mixed color image of a first primary color and a second primary color and has the same gradation value in a main scanning direction. The second image area is an image area of the second primary color and has the same gradation value in the main scanning direction. The control unit corrects a correction table based on the test image formed in the image forming unit. In the correction table, for each primary color, the gradation value is corrected according to a position in the main scanning direction.

Abstract: A printing mediation server includes a controller configured to perform transmitting first print data representing images of plural pages to a first printer, controlling the first printer to perform printing based on the first print data, receiving, after the first print data is transmitted to the first printer, a stop notification transmitted from the first printer, when a stop instruction is transmitted from a terminal device to the first printer, receiving, after the stop notification is received from the first printer, a print data request transmitted from the second printer, when a restart instruction is transmitted from the terminal device to a second printer, transmitting, to the second printer, second print data including at least partial print data representing images of pages not printed, when the print data request is received from the second printer, and controlling the second printer to perform printing based on the second print data.

Abstract: A method of forming an image and a crease on media by an image forming system includes forming a crease formation pattern on an impression media received by an impression member. The method also includes forming the image on an image forming blanket of an intermediate transfer member by a print unit. The method also includes pressing the media against the impression member by the image forming blanket to transfer the image onto the media and to establish contact with the crease formation pattern to form the corresponding crease on the media.

Abstract: An exposing unit has a plurality of light emitters arranged in a main scanning direction. The exposing unit is configured to form a scanning line by exposing an image surface in the main scanning direction, and to form a plurality of pixels arrayed in the main scanning direction by sequentially forming a plurality of scanning lines shifted in a sub-scanning direction. A clock generator is configured to generate frequency-spread clocks having frequency that is spread with a particular modulation cycle. A driver is configured to drive the exposing unit to emit light during a lighting period based on the frequency-spread clocks. The driver sets an interval of exposure start time of the plurality of scanning lines. At least one interval is different from a reference period obtained by dividing a period for forming the pixels arrayed in the main scanning direction by a number of the plurality of scanning lines.

Abstract: An image data processing apparatus includes a white-colorant-amount specifying unit that specifies an amount of a white colorant used by an image forming apparatus to form an image having a unit area, the image forming apparatus forming an image on a recording medium by using the white colorant and at least one process-color colorant; and a process-color-colorant-total-amount adjusting unit that adjusts a total amount of the at least one process-color colorant used by the image forming apparatus to form the image having a unit area. The process-color-colorant-total-amount-adjusting unit adjusts the total amount of the at least one process-color colorant so that a sum of the amount of the white colorant and the total amount of the at least one process-color colorant used to form the image having a unit area is constant.

Abstract: A computer model of a physical object may be formed by registering multiple images of the physical object by using a registration process based on characteristic features of the physical object. Multiple images may be registered by aligning characteristic curves of the physical object that have been identified through imaging. A curve-based registration process may be used in dental applications to register multiple images of a patient's oral anatomy to form a computer 3D model from which a patient-specific dental restoration may be designed.

Abstract: In accordance with an embodiment, an image processing apparatus comprises a scanner; a designation section configured to designate a color presented in an original document as the object to be removed; extraction section configured to extract color information of the color to be removed based on image data which is obtained by reading, using the scanner, a color information extraction sheet on which an image is formed with a material of the color to be removed; and a conversion section configured to form, based on the designation of the designation section and the color information extracted by the extraction section, an image by removing the image data in the color designated to be removed from the image data of the original document.

Abstract: An image processing device includes a correction processor that corrects print image data by correcting an edge-portion correction area in an edge portion of a print image based on the print image data. The edge-portion correct area extends along image edge having a ground color and an upper layer color over the ground color in the edge portion.

Abstract: An image forming apparatus includes an image forming unit configured to form a density detection pattern and a reference pattern on an image carrier by a developer; a light-receiving unit configured to receive reflection light of light emitted toward the image carrier, and output a signal corresponding to an amount of received light; a sampling unit configured to sample the signal output from the light-receiving unit, and store sampling values in the storage unit; a detection unit configured to detect the reference pattern; and a determination unit configured to determine a sampling value corresponding to reflection light from the density detection pattern of the color among the sampling values stored in the storage unit, based on a detection time of the reference pattern.

Abstract: A light source unit includes a surface-emitting laser array including light emitting units; and an apertured member provided on a light path of light beams emitted from the surface-emitting laser array, the apertured member including an aperture. In at least one direction, an intensity distribution of interference patterns caused by the light beams passing through the aperture includes an equal number of crests and troughs.

Abstract: An image forming apparatus including: a photoreceptor; a charger configured to charge a photoreceptor surface; an optical scanning device configured to expose the photoreceptor surface to form an electrostatic latent image thereon; a developing device configured to develop the electrostatic latent image to form a toner image thereon; a transfer member configured to transfer the toner image to a sheet; a fixing device configured to fix the toner image thereon; and a control unit configured to carry out exposure amount control for formation of an image having a pattern with a spatial frequency from 0.1 c/mm to 3.0 c/mm so that after the exposure, there will be an electric potential difference V1 between an edge portion and a non-edge portion of the pattern and so that there will be an electric potential difference V2 larger than V1 between an edge-surrounding portion and the other portions of a non-image area.

Abstract: Methods, algorithms, processes, circuits, and/or structures for laser patterning suitable for customized RFID designs are disclosed. In one embodiment, a method of laser patterning of an identification device can include the steps of: (i) depositing a patternable resist formulation on a substrate having configurable elements and/or materials thereon; (ii) irradiating the resist formulation with a laser tool sufficiently to change the solubility characteristics of the resist in a developer; and (iii) developing exposed areas of the resist using the developer. Embodiments of the present invention can advantageously provide a relatively low cost and high throughput approach for customized RFID devices.

Abstract: A present invention is provided with a laser light source having a plurality of laser elements capable of scanning a plurality of lines in parallel in a sub-scanning direction at a second resolution, which is higher than a first resolution of an image to be formed in a main scanning direction, a multiplexer and a laser driver that set a scaling ratio of an image in the sub-scanning direction in response to the first and second resolutions and an image size for image forming, and perform control so as to select and drive any of the plurality of laser elements of the laser light source in response to the scaling ratio that has been set, and an image forming unit that forms on a print medium an image of lines scanned using laser elements driven by the laser driver.

Abstract: An optical scanning device includes a light source that emits first and second light beams, and an optical splitter to which the first and second light beams deflected by an optical deflector are incident. Principal rays of the first and second light beams incident to the optical splitter are nonparallel to each other in a plane orthogonal to a main-scanning direction. Transmitted light from the optical splitter out of the first light beam and reflected light from the optical splitter out of the second light beam are guided to corresponding scanning target surfaces, and transmitted light from the optical splitter out of the second light beam and reflected light from the optical splitter out of the first light beam reach none of the scanning target surfaces.

Abstract: Systems, apparatuses, and methods for an adaptive filter scheme in handheld positioning device are described herein. The adaptive filter scheme may determine a direction that the positioning device is traveling and adjust one or more parameters of the filter scheme based at least in part on the determined direction. Other embodiments may be described and claimed.

Abstract: A light-emitting device includes: a board; plural light-emitting chips that are one-dimensionally arrayed in a longitudinal direction of the board and that are connected to a first potential and a second potential; and plural capacitors that each include a first electrode and a second electrode arranged in a short-side direction of the board, and that are arrayed in the longitudinal direction of the board so that the first electrode and the second electrode are alternately positioned between each adjacent two of the capacitors. The first electrode is connected to the first potential for the light-emitting chips, and the second electrode is connected to the second potential for the light-emitting chips.

Abstract: Electrophotographic print system, comprising a photosensitive medium, and a laser array being provided with a plurality of laser diodes arranged to emit light onto the photosensitive medium for varying an electrical potential on a surface of the photosensitive medium, and a plurality of heat dissipation diodes, each heat dissipation diode being arranged in proximity to a corresponding laser diode, wherein each laser diode and the corresponding heat dissipation diode are coupled to a common drive circuit and are arranged in opposite current flow directions with respect to each other, so that in use the current flows either through the laser diode or through the heat dissipation diode depending on the current flow direction in the drive circuit.

Abstract: A semiconductor device, a print head comprising the semiconductor device and an image forming apparatus comprising the print head are supplied which are able to reduce cost through miniaturizing element size and minishing chip area. The semiconductor device comprises a plurality of light emitting elements; and a shift register circuit that has output terminals respectively corresponding to the plurality of light emitting elements and stores emitting-light instruction data of the light emitting elements, wherein each light emitting element has a first electrode and a second electrode to that lightening electricity of the light emitting element flows, and a third electrode for controlling the light emitting element whether to emit light, the output terminals of the shift register circuit are respectively connected with the third electrodes of the corresponding light emitting element.

Abstract: A charge controlling circuit controls charging of a lithium-ion rechargeable battery. An electric power supplied from an external charger to the lithium-ion rechargeable battery is taken by a charging terminal. When the charging terminal is connected to the external charger, whether or not a charge prohibition condition is satisfied is determined by a CPU. A charging operation is prohibited when the charge prohibition condition is satisfied, but is permitted when the charge prohibition condition is not satisfied. Here, the charge prohibition condition includes a shortest time condition that a time during which the charging terminal is detached from the external charger is above a defined time decided in view of an instantaneous power interruption.

Abstract: An image position detecting device includes a light irradiating unit and a photodetector. The light irradiating unit is disposed so as to face a movable body which is being moved in a certain direction. The light irradiating unit irradiates any of marks formed on the movable body with light having a wavelength in an ultraviolet range at a time. The marks are formed of color components, respectively. The photodetector is provided separately from the light irradiating unit to face the movable body. The photodetector detects light having a wavelength in the ultraviolet range from light regularly reflected by the irradiated mark.

Abstract: A method of adjusting an exposure device suited for an electrophotographic printer, the exposure device includes a plurality of light-emitting elements. The method includes the steps of energizing selected light-emitting elements according to a selection scheme, using a pre-determined energy level for energizing each selected light-emitting element and obtaining a corresponding exposure intensity distribution from the exposure device. The method further includes the steps of predicting a toner area coverage distribution, based on the obtained exposure intensity distribution and on a pre-established transfer function, obtaining an attribute of the predicted toner area coverage distribution and determining the setting values for the energy levels for energizing each selected light-emitting element such that the obtained attribute becomes a target attribute.

Abstract: An optical head is adapted to form an electrostatic latent image on an image carrier. A transparent substrate has a first face adapted to oppose the image carrier and a second face opposing the first face. An organic EL photo emitter is disposed so as to oppose the second face of the substrate. In the photo emitter, a light emitting layer is adapted to emit light irradiating the image carrier to form the electrostatic latent image. An electrode layer is laminated on the light emitting layer. A reflection reducer eliminates stray light generated when the light emitted from the light emitting layer is reflected by at least the electrode layer.

Abstract: An image forming apparatus in which a plurality of color component images of different colors, which include a reference color (e.g. black) serving as a reference and adjustment colors (e.g. cyan, magenta and yellow) to be adjusted, are formed on respective photosensitive drums and then transferred to a transfer belt. Respective positions of the color component images transferred to the transfer belt are detected by a CCD. Timing adjustment can be performed so that the difference between the detected position of each of the color component images and a prescribed position is not more than a predetermined value, based on the reference color image as the reference. In this case, the color component images are formed on the corresponding photosensitive drums with the same timing by utilizing a single polygon mirror.

Abstract: A color printing apparatus having pulse-width modulation means which performs pulse-width modulation for tone control, and a control method thereof are provided. Based on determination of a printing mode of printing data supplied and determination of whether or not the printing data is to be processed as single-color data, a pulse-width modulation pattern to be used by the pulse-width modulation means is decided.

Abstract: A printing device for inkjet printing machine includes a base having a printing unit connected thereto and the printing unit includes a plurality of printing heads and ink cartridges. An UV beam generating device is connected to a side of the base and has an aperture defined in an underside thereof so that the UV beams goes through the aperture and toward an object to be printed. An anti-scattering device is connected between the printing heads and the aperture so as to keep the UV beams away from the nozzles of the printing heads.

Abstract: A high density array of light emitting diodes for visual display and imaging purposes. The array is mounted on a thermally and electrically conducting medium such as an aluminum block. The block, in one embodiment, is configured to permit a supplementary cooling liquid to be circulated through it. Typically, such LED arrays are fabricated by forming a plurality of p-type islands in n-type host semiconductor material. Each p-type island has an individually addressable contact and a common n-type contact is made to the aluminum block by, for example an electrically conductive epoxy. In operation the connection between the carrier and array may be lost due to a temperature differential between the two components. The present invention avoids this problem by providing a separate connection in parallel with or in place of the common n-type contact.

Abstract: A light scanning device adjusts scanning speed uniformity with high accuracy to obtain an image having fine absolute position accuracy. The light scanning device is mounted on an image forming apparatus. The light scanning device includes a scanning speed uniformity adjusting mechanism that can move a reflection mirror around the axis that is orthogonal to a main scanning corresponding direction and parallel to a reflection surface of the reflection mirror. The light scanning device further includes a scanning line inclination adjusting mechanism that can move an optical element around the axis orthogonal to the main scanning corresponding direction and orthogonal to the sub-scanning corresponding direction. The optical element has a function of adjusting a scanning line position.

Abstract: A printing machine with an electrophotographic device, having a photoconductor, a photoconductor drive and an illumination device. The electrophotographic unit can be provided with the substrate by a feed device. The photoconductor drive motor is adjusted by a controller and the feed device can be linearly adjusted by a feed device drive motor. In order to produce high-definition prints, especially images or lettering on plate-shaped substrates, the feed device drive motor is adjusted by a controller that is controlled by a master-slave controller via a setpoint feed. The controller for the photoconductor drive motor is also controlled by the master-slave controller via a setpoint feed and the master slave controller synchronizes the feeding speed of the feed device and the speed of movement of the photoconductor.

Abstract: There is provided an image forming apparatus that is capable of securing required printing quality by properly correcting a main scanning scale. In a pixel division modulating process, for each of one or more correction points (at l-th, m-th, and n-th pixels) on each of lines along which scanning is carried out on a photosensitive drum 11 by laser light, the final bit data of pixel-division-modulated pixel data of a pixel immediately preceding each correction point is added to the pixel data of a pixel located at the correction point as the leading bit data of the pixel-division-modulated pixel data of this pixel. The same processing as above is sequentially performed on pixel data of pixels located subsequently to the correction point to sequentially shift predetermined bit data of pixel data of pixels to pixel data of the respective following pixels, to thereby generate pixel data of a new pixel. The generated pixel data of the new pixel is outputted in synchronism with an image clock of a fixed frequency.

Abstract: A method and apparatus for capturing and printing an image of a subject utilizes a tracking mechanism to allow an operator to print the captured image onto a selected surface by manually manipulating the apparatus across the surface. The apparatus is a print-capable digital camera which can print the captured image in one of a range of sizes. The printing process involves an operator placing the digital camera on the surface and scanning the surface in order for the digital camera to print a segment of the captured image according to the location of the digital camera. The tracking mechanism may be comprised of two trackball assemblies. The rotations of the trackballs generate location data which is utilized by digital signal processing circuitry to determine the position of the digital camera relative to a start-print position.

Abstract: A highlight raster output scanner is disclosed which utilizes an amplitude modulation with its reference level being placed at its white level. Having the reference level at the white level provides the possibility of utilizing two independent power drivers to generate modulation pulses. One power driver generates color pulses (above the white level) and the second power driver generates black pulses (bellow the white level). Since an independent power driver is generating the color pulses, the color level can be raised to saturation to prevent the nonuniformity of the intensity of the light beam for color. Also, any intensity variation of the white level can be adjusted by comparing the white level against the reference level. Finally, the black level is kept at ground potential in the same manner as the prior art.

Abstract: In an electrophotographic image forming apparatus, a photoconductive element includes a photoconductive film having a thickness of 15 .mu.m or below. A light beam having a diameter of 50 .mu.m or below optically forms a latent image on the photoconductive element. Toner is caused to deposit on a dot image in an amount 1.2 times greater than on an area image. This is successful to minimize the variation of image quality and to render dots inconspicuous. The method of forming toner images is also included.

Abstract: A color copy machine is equipped with four image forming sections for forming images of different color components based on image data items relating to separated color components. A conveyance belt is provided below each image forming section. To avoid forming of a displaced image on a recording paper sheet P conveyed by the conveyance belt, pattern data for prevention of a displaced image is synthesized with image data. Each image forming section forms color patterns on predetermined portions of the conveyance belt on the basis of the synthesized data. The main-scanning directional displacement of each color pattern can be detected by comparing the numbers of those sensed line segments of the patterns which are sensed by a sensor. Then, the image forming positions are adjusted so that the numbers of the sensed line segments will be equal to each other.

Abstract: Full color images are formed by electrophotography which utilizes a rotary member having an endless photosensitive surface which has a plurality of different band regions divided in a direction perpendicular to a rotational direction of the rotary member. The photosensitive surface is electrostatically charged, and the plural band regions are simultaneously irradiated each with light of a different color to electrostatically form a different latent image in each of the band regions. Then, the latent images of the respective band regions are developed to provide a set of differently colored images which are transcribed onto a recording medium. After the set of differently colored images is transcribed onto the recording medium, the recording medium is indexed in a direction perpendicular to the rotational direction of the rotary member.

Abstract: An image forming apparatus has an image scanner, a sensor for determining that the image sensor has scanned the front edge of a document, and a controller using main scanning line synchronizing signals and an output signal of the sensor as reference signals. In response to the reference signals, the controller causes at least a writing unit to start writing each image data of particular color and causes a transfer medium driving circuit to start driving a transfer medium. The apparatus allows image components of different colors to be transferred to the transfer medium one above the other in accurate registration.

Abstract: In a color image forming apparatus, a plurality of color images of component colors are combined to form a full color image. These images of the component colors are overlapped on an intermediate recording medium, and are then transferred to a transfer medium. Control circuitry reduces the amount of time required to form the component color images on the intermediate transfer medium, and to prevent an abnormality such as an out-of-phase or pull-out of a closed loop control circuit for controlling such a formation of the component color images. This may be achieved by abruptly changing a phase of a motor synchronizing signal. Further, for a period of time after the motor synchronizing signal is abruptly changed, a gain of an amplifier in the motor control circuit can be reduced, an abnormality detection in the motor control circuit can be reduced, the motor control circuit can be placed in an open loop state, or an addition or subtraction signal can be input to the closed loop motor control circuit.

Abstract: A printing apparatus for superposing and recording images of respective recording color components constituting one page on a predetermined recording medium to form a color image includes an operation unit for instructing to stop printing processing, an output section for converting input printing data into pattern images of the respective color components and storing the pattern images in an image buffer memory, a printer engine for superposing and recording the pattern images converted by the output section on the recording medium in units of recording color components, and an instruction section for controlling to stop processing upon completion of current color component superposition recording when at least a printing stop instruction is output from the operation unit while sequential superposition recording of the images of the respective color components is being performed by the printer engine.

Abstract: This invention provides a process for electrographically imaging a plurality of substrates heretofore not usable in such a system. While prior art dielectric substrates could be used in the present process, the specific parameters outlined in this invention allows many more charge retentive surfaces or substrates to be used in electrostatic imaging. The process involves developing the latent electrostatic image before dissipation of the image charge which can be calculated by the inventive process for each substrate to be used.

Abstract: A color-image forming apparatus includes: an electrostatic latent image holder; electrostatic latent image forming unit for forming a plurality of electrostatic latent images on the image holder; a scanning unit for scanning the electrostatic latent image holder periodically at predetermined timings; developing devices for developing each of the plurality of electrostatic latent images by toners of each of different colors respectively, and forming thus developed toner image on the image holder; a simultaneously transferring device for simultaneously transferring the plurality of toner images onto a transfer medium; fixing device for fixing the toner image on the transfer medium; and timing-setting unit for setting a timing at which said scanning means starts scanning at each of slow scanning pitches in the direction of fast scanning for each of the plurality of colors; wherein the timings which are allotted to each of the colors are different each other so that the starting position of the scanning of each c

Abstract: A color printer includes a single laser scanning unit which is controlled to emit a scanning laser in accordance with color image data on each of a plurality of separated colors to be printed. A plurality of photosensitive drums, whose number corresponds to the number of colors to be printed, a laser scanning unit driver which moves the laser scanning unit to transfer positions corresponding to the photosensitive drums, and a plurality of developing units corresponding to the photosensitive drums are provided, to develop latent images drawn on the photosensitive drums by the laser emitted from the laser scanning unit, using a toner of each color. An endless transfer belt has a transfer surface which is successively moved to the transfer positions, and a transfer device which successively transfers the toner images developed by the developing units on the photosensitive drums, onto the same transfer surface of the transfer belt are also provided.

Abstract: An image forming apparatus includes a plurality of image forming units each having a photoconductive drum for forming a latent image and a developing device for developing the latent image, for providing different-color developed images, an exposing device for projecting light according to image information, and a plurality of mirror members for controlling the optical passage of the exposing device so as to expose a selected photoconductive drum without shifting the exposing device, thereby simplifying the apparatus and allowing for a stable drive.

Abstract: Disclosed is an imaging device which uses a recording paper composed of a base paper exhibiting a color and a photoconductlvely-color-changing layer formed thereon and includes an optical system for introducing a light having a specific wavelength to the recording paper based on image information. The photoconductively-color-changing layer is composed of a photoconductively-color-changing agent having the characteristic that the agent usually exhibits a specific color different from that of the base layer and is changed to colorless and transparent by being irradiated with the light having the specific wavelength.

Abstract: In an apparatus for forming an electrostatic latent image in a form of dot for each pixel on a photoreceptor, each pixel has plural color component signals and a dot is formed for each of color component signals in the same imaging unit area. A signal processing circuit processes specific color component signals of pixels neighboring a target pixel to obtain a density distribution around the target pixel, and determines a recording position of the dot in the recording unit area for each of the plural color component signals on the basis of the density distribution.