Abstract: A control device mounted in an image forming apparatus includes a region searching for unit searching for a region adapted to measure colors in an image; a color measurement unit configured to measure colors of the superimposed color toner image in the region; a storage unit storing measured colors and densities proportional to area ratios of primary color toner images in the superimposed color toner image in the region; and a correction amount determination unit determine correction amounts corresponding to the setting values expressing the tone reproduction curves to minimize the difference between the measured colors and the reference colors.

Abstract: An image processing apparatus capable of facilitating synchronization of a maintenance moving image between an image processing apparatus and a mobile information terminal, thereby making it possible to more efficiently show the moving image to a user who performs a maintenance operation. The mobile information terminal is registered as a distribution destination of the moving image. The moving image for current reproduction and display on the apparatus and information of the reproduction position of the moving image are distributed to the terminal to thereby cause the terminal to reproduce and display the moving image from the position. The position is changed based on information of a change in the reproduction position received from the terminal. When the position is changed on the image apparatus, information of a change in the position is transmitted to the terminal, to thereby cause the terminal to change the position.

Abstract: In an apparatus including an irradiation unit capable of irradiating a sheet selectively with visible light and ultraviolet light, and a measurement unit which measures a spectral reflectance based on light reflected by the sheet, whether to cause the irradiation unit to emit the ultraviolet light when measuring the spectral reflectance of a patch image printed on the sheet is determined based on the spectral reflectance of a reference image of the color of the sheet that has been measured by the measurement unit which measures a spectral reflectance while the ultraviolet light is emitted.

Abstract: An imaging device includes a plurality of light-receiving units configured to perform photoelectric conversion for different colors, respectively, each light light-receiving unit including a plurality of pixels; a plurality of output units provided for the light-receiving units, each output unit sequentially converting charges of the respective pixels produced by the photoelectric conversion into voltages and sequentially outputting the voltages; a switching unit configured to switch between signal paths so as to alternate output of the voltage between the output units in accordance with a switching signal input from an external device; and an electric-potential applying unit configured to apply an offset potential to the voltages output by the output units until a predetermined time has elapsed since switching between the signal paths by the switching unit.

Abstract: An information processing apparatus includes a receiving unit and a provision unit. The receiving unit receives a display instruction regarding information about data whose printing is reserved from a device. The provision unit provides the device with a screen for displaying a reservation job including a print button for instructing print of data at a time of receiving reservation and a print button for instructing print of data at a time of receiving the display instruction in a case where the display instruction is received by the receiving unit and data at the time of receiving the reservation are different from data at the time of receiving the display instruction.

Abstract: A method implemented in a printer for PDF direct printing. The printer includes a PDF interpreter such as APPE (Adobe PDF Print Engine), and at least one other interpreter also capable of interpreting PDF data, such as a PostScript interpreter. The printer automatically selects either APPE or the PS interpreter or both to interpret a PDF document. If the PDF document is PDF/VT, PDF/X-4 or later, then APPE is selected. If the PDF document is not one of these versions but contains transparency data, APPE is selected to interpret the pages containing transparency data, and the other pages may be interpreted using the PS interpreter. If the PDF document is not one of the above versions and contains no transparency data, the PS interpreter is selected. Other factors such as the busy status of the interpreters may be considered in making the selection.

Abstract: When the pixel of interest exists at a pixel position where reference of an error buffer is necessary, a quantization error generated in a region having undergone error diffusion processing is obtained from the error buffer. A quantization error generated in error diffusion processing in a region containing the pixel of interest is obtained from an error memory. Diffusion errors are calculated from the quantization errors using an error diffusion matrix. The value of the pixel of interest and the diffusion errors are added, and the addition value is quantized into the quantization value of the pixel of interest. The difference between the quantization value and the addition value is calculated as a quantization error to be stored in the error memory. When the pixel of interest exists at a pixel position where write in the error buffer is necessary, the quantization error is stored in the error buffer.

Abstract: Device color signals are converted such that a total amount of used color materials in the first image area, in which image granularity is more important, is not reduced from a total amount before the device color signals are converted, and/or such that a total amount of used color materials in the second image area, in which cost of the used color materials is more important, is not increased from a total amount before the device color signals are converted.

Abstract: An image forming apparatus has a normal mode and a power saving mode. The image forming apparatus includes a printing portion for performing printing, a communication portion for performing a communication process, a system controller for performing operation control of the apparatus and a process concerning communication, and a power supply controller configured to supply power to the printing portion, the system controller, and the communication portion in the normal mode while in the power saving mode, to supply power to the communication portion but to stop power supply to the printing portion. The system controller performs the process concerning communication during the power saving mode, and the power supply controller adjusts a length of a stop time so that average power consumption of the image forming apparatus does not exceed a permissible maximum power, so as to temporarily restore the system controller during the power saving mode.

Abstract: A scanning method used to scan documents in a scanning system, the system including a scanner and a user host computer having a technology without an interesting name (TWAIN) driver, the scanner and the user host computer connected by a local interface and a network, includes selecting one of the local interface or the network to connect the scanner and the user host computer; if the network is selected, connecting the TWAIN driver to the scanner via the selected network to control scanning processes of the scanner; and performing scanning according to the selected local interface or the network.

Abstract: A print system comprises notification part for providing, to a user, a notification of an inquiry about whether concurrent printing output that an image forming apparatus performs first printing output and subsequently performs second printing output is scheduled, in a non-sleep period associated with the first printing output by the image forming apparatus; and setting part for setting a transition standby period for transition of the image forming apparatus to a sleep state at a first value when a reply for informing that the concurrent printing output is scheduled is not sent from the user, and setting the transition standby period at a second value which is larger than the first value when the reply is sent from the user.

Abstract: When image is formed by a liquid ejection head, input image data is subjected to conversion processing including tone conversion using a first look-up table (LUT) and density correction or non-uniformity correction in nozzle units using second LUTs. Ink use amount in image formation is predicted from reduced image data which is generated from the input image data. In this, the calculation is made more efficient by applying a third LUT which is compiled according to requirements from the second LUTs, to the reduced image data, rather than using the second LUTs directly. Since the image conversion processing is carried out which combines the first LUT for tone conversion and the third LUT corresponding to the non-uniformity correction, and the ink amount distribution data is calculated from the reduced image data after the conversion, then it is possible to ascertain an accurate ink amount which reflects the image adjustment conditions.

Abstract: A method for simulating a textured appearance on a uniform substrate includes using variable halftone dot orientations. A texture description is provided for generating electronic data representing a three-dimensional texture. Texture regions of the texture description are identified using pixel cells in the electronic data. Halftone dot orientations are assigned for each pixel cell based on a value of the pixel cell. The halftone dot orientation represents a recessed or a raised surface portion.

Abstract: A method for rasterizing a transparent page comprises interpreting the transparent page to obtain graphic entities, transparency properties of the graphic entities, and profile information of the graphic entities; dividing the transparent page into a transparent area and a nontransparent area according to the transparency properties of the graphic entities; identifying, from the graphic entities, an overlapping graphic entity having an overlapping portion with the transparent area according to the profile information of the graphic entities; and dividing the transparent area into a de-transparentizing area and an ultimate transparent area by using the overlapping graphic entity.

Abstract: An image formation apparatus includes an image formation processing managing unit and a control unit. The image formation processing managing unit manages first image formation processing to form an image on a face of plane-shaped recording medium based on received information. The control unit controls conveyance of the plane-shaped recording medium between the image formation apparatus and the other image formation apparatus which performs second image formation processing to form an image on the other face of the plane-shaped recording medium, a second term needed to stop the second image formation processing since receiving an instruction to stop the second image formation processing on an image forming operation being longer than a first term needed to stop the first image formation processing since receiving an instruction to stop the first image formation processing on the image forming operation.

Abstract: An image processing device processes image data, which is edited to image data including, in correspondence with each pixel of an object included in the image, a pixel value field that holds a pixel value of the pixel and an attribute value field that holds an attribute value. The image processing device includes a generation unit which includes a table that holds characteristic data and an address of the characteristics data, generates an attribute value based on information of a position of a pixel in the image and the table, sets the attribute value in the attribute value field, an image processing unit which applies an image process to a pixel value set in the pixel value field based on the set attribute value, and a connection module moves the image data from the generation unit to the image processing unit.

Abstract: An image forming apparatus and a control method thereof, the control method of an image forming apparatus which transmits and receives facsimiles through a first line and a second line including detecting a facsimile transmitting and receiving error of a first facsimile unit and a second facsimile unit which are respectively matched to the first line and the second line; and switching the first line to be matched to the second facsimile unit if the facsimile transmitting and receiving error is detected in the first facsimile unit. With this, if an error happens to one of a plurality of facsimile cards, a telephone number matched to the facsimile card having the error is automatically switched to a facsimile card normally operating, thereby normally performing a facsimile function.

Abstract: A print job includes instructions to print markings and perform finishing operations on a first type of media. Systems and methods determine print job characteristics of the print job based on data within the print job, and select a different type of media on which banner pages will be printed (e.g., “second types of media” that is different from the first type of media used for the print job pages). The banner pages contain human and/or computer readable instructions to perform the finishing operations. The media type used for the “second type of media” is based on the print job characteristics of the print job. The print markings are printed on the first type of media, and the banner pages are printed on the second type of media.

Abstract: A user efficiently prints a book as desired during the generation of a job. When a form is assigned a flag indicating a last page of the book, a page containing the form assigned the flag is set as the last page of the book and is added to a number of pages that have already been drawn to calculate the total number of pages, and the number of blank pages necessary to place the page containing the form assigned the flag on the last page of the book is determined.

Abstract: A non-transitory computer-readable recording medium stores programs for a computer to execute a method of controlling a print job of a document from an application. The programs includes a controlling program to control the print job with a job ID, a setting receiving program to receive a setting condition, an image processing program to convert the document into print data, and a print data processing program to store the job ID with image data. The method includes the steps of obtaining the job ID, generating the image data, and storing the job ID with the image data into the print data processing program, executed by the setting receiving program, and the steps of obtaining the document and the job ID, receiving the image data, and converting the image data and the document into the print data, executed by the image processing program.