Abstract: A printer (100) for printing based on a print job signal sent from a data processing device (200) registers print job signal sending sources and a message corresponding to each sending source in memory (111, 112). A controller (113) detects whether the sending source of a received print job signal is registered in memory. If the sending source is registered, a messaging unit (110, 111) outputs a corresponding message. Sending sources that are permitted to print can also be registered in memory (111, 112). In this case, the controller (113) detects whether the sending source of a received print job signal is registered in memory, and instructs the printer (110) to print only when the sending source is registered as permitted to print.

Abstract: In a print system including a server holding an application program connected to a network. In a client computer, when a print request for data obtained by the application program is received, client information and a request to make print data for the data are requested to the server. In the server, print data are made according to print control information according to the received client information, the print data is sent.

Abstract: A document type discriminating apparatus is provided in which discrimination as to whether or not a document is a duplicate is made with high degree of accuracy. The document type discriminating apparatus includes means for discriminating whether a type of a screen pattern used in an image captured by reading a document is a line screen, means for detecting whether a value indicating a change in a period of the screen used in the image exceeds a predetermined value, means for detecting whether a value indicating sharpness of an edge seen in the image is lower than a predetermined value, means for detecting whether a value indicating a blur in an edge color seen in the image exceeds a predetermined value, and means for discriminating that the document is a duplicate when at least two out of the four detection results mentioned above are true.

Abstract: An image processing apparatus, a management system and a computer program product are disclosed that enable firmware that controls operations of the image processing apparatus to be updated appropriately, even when, for example, an initial setting in the image processing apparatus has been changed. Firmware in the image processing apparatus is stored in a rewritable storage device such as a flash ROM, and is updated by transmitting a new firmware to the image processing apparatus and rewriting the contents of the storage device. The new firmware is transmitted together with a control program (including script) that describes processing to be executed in the image processing apparatus before and/or after updating the firmware.

Abstract: In a print system, an application server holds an application program. A client computer uses the application program, and data obtained by the application program is printed by a printer. The server acquires a printer driver according to the client information. The application program obtains print data by using the printer driver and sends the print data to the client computer or the printer. Thus, the application program automatically changes the printer driver according to the client information or user.

Abstract: Device, method and computer program capable of obtaining from image data document data readable and effectively adherable in a region of definite form without waste. According to the device, method and computer program, a document block containing a specific image such as a headline and a body text is extracted from among image data to be processed, character code is recognized from a character image of the specific image within the document block, the document block is reconstructed in a specific shape, and character code data corresponding to the recognized character code is laid out within the reconstructed document block.

Abstract: In case of transmitting a document file such as a PDF file to a printer without converting it into print data, a PC extracts from the document file to be printed information to be accessed when starting an analysis of the document file and transmits the information to the printer. The PC extracts a specified data from the document file and transmits it to the printer each time when the specified data is requested by the printer.

Abstract: In case of transmitting a document file such as a PDF file to a printer without converting it into print data, a PC extracts from the document file to be printed information to be accessed when starting an analysis of the document file and transmits the information to the printer. The PC extracts a specified data from the document file and transmits it to the printer each time when the specified data is requested by the printer.

Abstract: In case of transmitting a document file such as a PDF file to a printer without converting it into print data, a PC extracts from the document file to be printed information to be accessed when starting an analysis of the document file and transmits the information to the printer. The PC extracts a specified data from the document file and transmits it to the printer each time when the specified data is requested by the printer.

Abstract: An electronic device includes a display having a memory function and a communications capability. Display functions are controlled based on a state of the operation of the device and/or based on a state of received data. Also disclosed is a method of selectively displaying advertising information based on a state of the device where the advertising can be maintained on the display without requiring any power consumption.

Abstract: An ink jet printer ejects ink droplets of a plurality of sizes based on image data, and prints dots of a plurality of sizes corresponding to the ink droplets of the plurality of sizes for recording the image. In the ink jet printer, in order to print a smoothing dot close to a normal dot, pulse voltage having a waveform having its printing timing changed from a waveform for printing the normal dot is applied to a piezoelectric element. As a result, an ink jet printer capable of recording high definition images can be provided.

Abstract: An image processing method for carrying out predetermined correction processing with respect to one or more items regarding the quality of color images and the image processing method comprises a judgment step for judging the necessity/normecessity of correction with respect to each of the above-mentioned items and a correction processing step for carrying out the predetermined correction processing with respect to the item judged as required to be corrected at the above-mentioned judgment step.

Abstract: The image forming apparatus receives image data based on multiple document images of various sizes and/or orientations. The apparatus identifies areas that are not yet assigned with document images on a single sheet of paper and identifies whether any document image can be laid out in an identified area. In another aspect of the apparatus, a maximum document image size is detected from multiple document images, and a scale factor is calculated to cause the detected maximum size match with the size of the entire area of the paper or an area obtained by dividing the paper into equal parts. In another aspect of the apparatus, a scaling factor is calculated for each document image to cause the size of the particular document match with the size of an area obtained by dividing the paper into equal parts.

Abstract: In flicker correction of a moving picture consisting of a plurality of frames, moving averages of accumulative histograms are calculated for each frame on image data. Then, gamma tables for correcting the image data of a frame in the plurality of frames are made such that the accumulative histograms after corrected with the gamma tables match with the moving averages of the accumulative histograms. Then, the image data of the frame in the plurality of frames is corrected with the gamma tables. In some cased, each frame is divided into areas, and the flicker correction is performed for each area if necessary.

Abstract: A server, which functions as an image data control device, stores image data based on input information into a hard disk of a storage unit, reads sequentially the image data stored in the hard disk sequentially, and detects the usage status of the hard disk in the course of reading the image data. Further, based on the detection result of the usage status of the hard disk, the server provides control for deleting from the hard disk at least a portion of the image data, which has already been read, among image data being read.

Abstract: In order to carry out an image processing with high precision by using a simple structure, an image processing apparatus is provided with an input unit, a storage unit, a binarization unit, and a determination unit. The input unit inputs image data of an image. The storage unit stores a first condition on absolute positions of pixels in the image and a second condition on positions of pixels relative to a target pixel. The binarization unit binarizes the target pixel based upon a color data of the target pixel and that of at least one related pixel to the target pixel to generate a binarized value. The at least one related pixel in the image satisfies the first and second conditions. The determination unit determines whether or not the image has a specified pattern, based upon the binarized values.

Abstract: There is provided an image processing apparatus employing an error diffusion method capable of preventing a pseudo contour attributable to a delayed dot. The image processing apparatus receives an error diffused from a neighboring pixel and corrects a value (an input value of 0 to 1) of a pixel to be processed before it reduces a tone. Then a subtracter calculates an error associated with the tone reduction, which is diffused to a neighboring pixel. Herein, only for an input value of no less than 0.5 an inversion portion multiplies by ?1 an error from a neighboring pixel and an error to a neighboring pixel. Thus a dot can be free of delay to prevent a pseudo contour.

Abstract: An image processing method for carrying out predetermined correction processing with respect to one or more items regarding the quality of color images and the image processing method comprises a judgment step for judging the necessity/nonnecessity of correction with respect to each of the above-mentioned items and a correction processing step for carrying out the predetermined correction processing with respect to the item judged as required to be corrected at the above-mentioned judgment step.

Abstract: In a communication system wherein a device and a client communicate data with each other through a network, the device holds a root certificate including a public key in a pair of the public key and a private key and signed with the public key. When data is sent, a certificate creator creates a second certificate including the root certificate designated as a certificate authority at a higher level and signed with the root certificate, and the second certificate is sent to the client. In the client, the root certificate has been stored beforehand, and a verifier verifies the signature of the second certificate with the root certificate.

Abstract: The printing data processing system searches for reference indication (i.e., link sources) in the received ML source data, and adds the page information for the linked objects to the ML source data. The page number on which the linked object is printed is printed after the printing of each link source term included when a ML source file, such as a home page. Consequently, when a home page is printed, for example, the user can easily arrive at the linked object from the link source in the printed document while the home page layout on the personal computer is kept intact.