Abstract: In accordance with one embodiment, an abnormality notification apparatus comprises a display device, a first drive circuit, at least one processor, a pulse generating circuit and a second drive circuit. The first drive circuit turns on the display device according to a control signal from a display control section. The processor operates according to separate programs. The pulse generating circuit outputs, during a period when a signal indicating an abnormality of any processor is input, a pulse signal corresponding to a blinking pattern for notifying the abnormality of the processor. The second drive circuit blinks the display device in response to the pulse signal output by the pulse generating circuit.

Abstract: A printing apparatus includes a printing unit configured to perform printing with a decolorable material, a communication unit configured to receive print data and security setting data for the print data from an external device, and a control unit configured to determine a security level of the print data based on the security setting data received by the communication unit and control the printing unit to print or not print the print data based on the security level.

Abstract: A correction method for an image forming apparatus including a light source including a plurality of light emitting points, a photosensitive member configured to rotate in a first direction so that a latent image is formed thereon with light beams emitted from the light source, and a deflecting unit configured to deflect the light beams emitted from the light source in a second direction orthogonal to the first direction to form scanning lines, the correction method including a correction step of correcting sparseness and denseness of density in the first direction caused by deviation of the scanning lines in the first direction by moving a predetermined pixel in the first direction in accordance with the deviation of the scanning lines and causing a pixel value of the predetermined pixel to be output in accordance with a movement of the predetermined pixel.

Abstract: A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.

Abstract: An image forming apparatus includes: an edge detection unit that detects one edge, in a conveyance direction, of a conveyed sheet; a passing detection unit that detects passing of the one edge; a judging unit that judges whether the edge detection unit or the passing detection unit has detected the one edge, within a predetermined monitoring time after the edge detection unit or the passing detection unit detected the one edge; a notifying unit that gives a notification indicating that front-back magnification correction is difficult to perform on the sheet when the judging unit has judged that the one edge is not detected within the monitoring time; an acquiring unit that acquires a desirable front-back magnification correction value input via an input unit according to the notification; and a correction unit that performs a front-back magnification correction process on the sheet, using the acquired front-back magnification correction value.

Abstract: A user authentication device provided on an apparatus as an object of operation acquires feature data representing notable portion of the user, using a camera device, after user authentication. Based on the acquired feature data, the user authentication device tracks the user by the camera (step S1030). If it is detected by the tracking that the user has left the apparatus, the user authentication device displays a log-in screen image on an operation panel (step S1060). If it is detected that the user once left the apparatus has returned to a position where he/she can operate the apparatus, the user authentication device displays the screen image that has been previously operated by the user. On the other hand, if it is detected that the tracking has been interrupted after the user left the apparatus, the user authentication device executes a log-out process (step S1120).

Abstract: A printer cartridge includes a memory device and at least one compressed color table stored on the memory device. A compressed color table includes a losslessly compressed neutral axis, a number of nodes that correspond to seed color table nodes and a number of delta nodes that correspond to a number of delta tables. The number of delta tables indicate differences between interpolated color table nodes and corresponding actual color table nodes.

Abstract: An image forming apparatus including a plurality of processing units capable of performing different support processing for a user asking for support, and a remote support apparatus operated by an operator are connected via a communication path. The remote support apparatus transmits to the image forming apparatus a request to perform the support using the selected processing unit, or a request to switch the processing unit to a selected specific processing unit and a request to perform the support. The image forming apparatus allows the processing unit which follows the request to perform the support, to perform the support, and switches the processing unit according to the request to switch the processing unit to allow the switched processing unit to perform the support. Further, the image forming apparatus returns a result which should be returned, among results of the performed support, to the remote support apparatus.

Abstract: An information processing method includes determining, in a luminance image that represents luminance components of an input image obtained by capturing a document image, a shaded region affected by shade and a specific pixel region including specific pixels less affected by the shade through a color of an object in the document image by using the luminance components of pixels of the luminance image, and generating a shade image that represents shade components of the input image by referring to pixel values of pixels adjacent to the specific pixels and repeating replacement processing of replacing a pixel value of each of the specific pixels with a value of the shaded region adjacent to the specific pixel until the specific pixel region disappears.

Abstract: According to an embodiment, an image forming system comprises a terminal device and an image forming apparatus. The image forming apparatus is provided with an image forming section, a transfer section and a transfer bias applying section. The image forming section forms a toner image on a transfer belt. The transfer section transfers the toner image onto a medium. The transfer bias applying section applies transfer bias voltage to the transfer section. The terminal device is provided with a request receiving section and a bias voltage determination section. The request receiving section receives a print request of printing the image on at least one card arranged on a cardboard as media. The bias voltage determination section determines the transfer bias voltage according to the print request.

Abstract: Provided is an image forming apparatus that prevents the image forming apparatus being operated in a state where a user setting value is changed by a maintenance worker before a user is aware of the change without lowering efficiency of a maintenance work. The image forming apparatus according to the present disclosure is an image forming apparatus whose operation is controlled based on a setting value, and the setting value contains an operation control user setting value set by an administrator user having administrator authority. The image forming apparatus includes a maintenance work processing part that prohibits a general user having no administrator authority from using the image forming apparatus until the administrator user approves the operation control user setting value changed by the maintenance worker if the operation control user setting value is changed by the maintenance worker having the administrator authority.

Abstract: A correction method for an image forming apparatus including a light source including light emitting points, a photosensitive member configured to rotate in a first direction, and a deflecting unit configured to deflect light beams emitted from the light source in a second direction orthogonal to the first direction, the correction method includes: a first correction step of correcting sparseness and denseness of density in the first direction by moving a predetermined pixel in the first direction, and causing a pixel value of the predetermined pixel to be output or not to be output in accordance with movement of the predetermined pixel; and a second correction step of correcting the pixel value of the predetermined pixel by moving the pixel value of the predetermined pixel in the second direction so that a pixel value is caused to be output or not to be output with a plurality of continuous pixels.

Abstract: An information processing unit determines, when receiving information through a reading process from a recording medium, whether a user identified by the information has transition authority for a transition from an energy saving mode to a normal mode of carrying out information processing; sends a transition request for carrying out a transition from the energy saving mode to the normal mode to a power supply control part when determining that the user has the transition authority; and carries out the transition to the normal mode in response to the transition request and, when authentication of the user is successful, displays on a user interface part a display screen page for receiving an operation concerning the information processing.

Abstract: An information processing apparatus of the present invention determines whether or not there is a bias in jobs distributed to a plurality of printers to be used in a distributed printing system. In addition, in a case where there is a bias in distributed jobs, the information processing apparatus decides a color correction target to be applied to a printer having a small number of distributed jobs and resulting in an unused state, applies the decided color correction target to the printer having a small number of jobs, to thereby decide a timing of performing color adjustment on the printer having a small number of jobs. The printer having a small number of jobs and resulting in an unused state is subjected to color adjustment at the decided timing.

Abstract: An image forming apparatus detects that the paper sheet cassette has been drawn out and that the paper sheet cassette has been housed, and upon detecting either that the paper sheet cassette has been drawn out or that the paper sheet cassette has been housed, detects that a reference operation has been performed. When the reference operation has been performed in a time period other than while a printing job is being executed, the control portion performs control so that the screen related to paper sheet setting is displayed, and when the reference operation has been performed while the printing job is being executed, the control portion performs control so that the screen related to paper sheet setting is not displayed.

Abstract: A print control apparatus for controlling a printing apparatus that calculates the amount of change between a designated color and a color measured, and is capable of executing a color accuracy verification, and a color correction includes: a job management unit that analyzes a print job and acquires a required color accuracy level, and calculates and manages a required time of the print job; an apparatus management unit that acquires a result of the color accuracy verification, predicts the degradation of the color accuracy, and calculates and manages a color correction effective time; and an output management unit that sets the output order of print jobs waiting to be output and the execution timing of the color correction, the required time of the print job, and the color correction effective time, and instructs the printing apparatus to execute the processing of the print job and the color correction.

Abstract: An image processing method includes performing first halftone processing and second halftone processing. The second halftone processing is performed, for a second kind of color in advance among a plurality of colors constituting an original image, in units of blocks each consisting of a plurality of pixels that constitute the original image and the second kind of color is converted into an amount of second kind of ink corresponding to the second kind of color among the plurality of inks. The first halftone processing is performed, for the first kind of color, for each pixel that constitutes the original image or each pixel group having a smaller number of pixels than the block and the first kind of color is converted into an amount of first kind of ink corresponding to the first kind of color among the plurality of inks.

Abstract: The invention causes a gloss observed in a reproduction to approach a gloss of a target even if a range in which it is possible to change the gloss in the reproduction is small. An input unit inputs color and gloss data including at least a color signal and a gloss signal of the target to reproduce. A mapping unit maps the color and gloss data into a gloss representable range based on information indicating a gloss representable range of the gloss representation device. A signal generation unit generates, based on the color and gloss data after the mapping, an output signal outputted to the gloss representation device. The mapping unit performs a mapping that saves information indicating a local gloss difference in accordance with a spatial distribution of the gloss signal as the mapping of the gloss signal.

Abstract: An image forming device includes at least one image formation function of copying, scanning, and printing, and a server function enabling reading of data from a storage unit and writing of data into the storage unit, the image forming device being connected to at least one external device having a server function via a network and including a power supply control unit configured to control a plurality of power-saving modes having different settings for supplying power to hardware, to make power consumption smaller than power consumption in a normal mode for enabling the image formation function, wherein: the plurality of power-saving modes include a first power-saving mode, a second power-saving mode, and a third power-saving mode; and the power supply control unit includes: a packet analyzing unit; a determining unit; and a mode control unit.

Abstract: A printer cartridge includes a memory device and at least one compressed color table stored on the memory device. A compressed color table includes a losslessly compressed neutral axis, a number of nodes that correspond to seed color table nodes and a number of delta nodes that correspond to a number of delta tables. The number of delta tables indicate differences between interpolated color table nodes and corresponding actual color table nodes.