Canon Kabushiki Kaisha

Norio Shimura

Masaya Kikuta

Masaaki Endo

Takeaki Nakano

Hirokazu Kameda

Manabu Kuchiki

Tetsushi Kohno

Masanori Echigo

Munetaka Yamaguchi

Mitsuru Maeda

Koji Yasuzaki

Masaki Tanabe

Shigeki Abe

Tadashi Yoshida

Yoshihiro Ishida

Yuichi Hirai

Sho Nakamura

Yuichi Bannai

Taketoshi Kusakabe

Kunio Imai

Kentaro Fukushima

Taichi Watanabe

Tetsushi Kono

Hiroaki Kitazawa

Teruyuki Yoshida

Shigehi Abe

A first processing module receives image data transferred from a controller, and executes image processing and a second processing module receives the image data transferred from the controller via the first processing module and executes image processing on the image data. The controller determines color components, of the plurality of color components of the image data, to be processed by the first processing module and the second processing module, based on at least communication amounts produced between the first processing module and the second processing module. Processed data having undergone the image processing performed by the first processing module based on the determined color components is transferred to the controller, and processed data having undergone the image processing performed by the second processing module based on the determined color components is transferred to the controller via the first processing module.

Image processing apparatus and image processing method

An image forming apparatus includes a memory including instructions, and at least one processor for executing the instruction to cause the image forming apparatus to act as a generation unit to perform image processing so as to generate image data including pieces of page data based on a print job, a determination unit to determine whether a piece of page data corresponding to a sheet passing a predetermined location of a conveyance path is prepared in time, and a control unit to perform, in a case where the piece of page data is not prepared in time, control to leave the sheet as a blank sheet by not performing image processing. The control unit changes a page order, determined in advance, of pages to be printed following the blank sheet in a case where it is determined the piece of page data is not prepared in time.

Image forming apparatus, image forming method, and storage medium

An image forming apparatus performs printing based on a print job and determines whether printing for a first print job and a second print job having been received after the first print job can be made continuously based on a progress of printing for the first print job. In a case where it is determined that the printing for the first print job and the second print job can be made continuously, print media to be used for printing for the second print job is fed to a conveyance path before completing outputting printouts for the first print job.

Image forming apparatus and image forming method with continuous printing

A print controlling device includes a receiving unit that receives image data, a print controlling unit that causes a printing unit to print a cut mark and the received image data on a recording medium by using a recording agent, and a determining unit that determines whether the received image data includes a mark indicating a cut position of the recording medium. The print controlling unit causes the printing unit to print the cut mark when it is determined that the mark indicating the cut position is not included, and causes the printing unit not to print the cut mark when it is determined that the mark indicating the cut position is included.

Print controlling device, print controlling method, and program

A method is provided that performs, based on a schedule, the printing of a plurality of images and the print head maintenance on the first face and the second face of a continuous sheet. The method includes: sensing a unique portion unsuitable for image printing that exists on the continuous sheet; and setting a printing schedule, when the unique portion is sensed in the first face or the second face, such that an image is prevented to be printed on the unique portion and a maintenance operation of the print head is performed at a region corresponding to the unique portion on the back face of the first or second face that has the unique portion.

Method for printing and printing sheet used for the method

A multifunction printer which can erase image data, which is specified by using a sheet on which a list of image data in a memory card printed, from the memory card. It is also a multifunction printer which can erase specified image data from a memory card after the specified image data is printed or stored in another storage medium.

Image processing apparatus and method for erasing an image based on a mark read from a sheet

The invention provides a multi-function printer not requiring exclusive components (principally electrical components) for reading the print settings and thus being free from a cost increase, and a control method therefor. For print settings such as a paper size and a print quality in a copying or a direct printing, a lever is provided for each print setting item. Before executing the reading and printing operations of copying or direct printing, position of each lever is read and the setting of each print setting item is analyzed based on the position of each lever, and the reading and printing operations are executed according to thus analyzed settings.

Image processing in accordance with position of member

When the time period is night, processing advances to step Sto set the initialization speed of a line feed motor to the first speed (v1), and to step Sto execute initialization operation of the line feed motor at the first speed (v1). When the time period is morning or daytime, the processing advances to step Sto detect a cover open/closed state. When the cover is open, the processing advances to step Sto set the initialization speed of the line feed motor to the first speed (v1). When the cover is closed, the processing advances to step Sto set the initialization speed of the line feed motor to the second speed (v2) which is higher than the first speed (v1). The processing advances to step Sto execute initialization operation of the line feed motor at the second speed (v2).

Printing apparatus and control method therefor

An ink jet printing system is provided which has an ink jet printing apparatus and a host and which alleviates a data processing load on the ink jet printing apparatus, prevents a reduction in a printing operation speed, and realizes a cost reduction. The ink jet printing apparatus of this invention has an ink receiving member for receiving waste ink ejected onto an overrunning area outside edges of a print medium and an accumulated value memory section for storing an accumulated value equivalent to waste ink volumes ejected onto the ink receiving member. The host includes a waste ink volume setting section for obtaining a value equivalent to a waste ink volume and a data sending section for sending data to the ink jet printing apparatus. The accumulated value memory section of the ink jet printing apparatus stores the accumulated value equivalent to waste ink volumes obtained by the host.

Data processing apparatus, data processing method, program, and ink jet printing system

An object of this invention is to provide an ink jet printing apparatus that can detect a state causing a printing operation failure without adding a sensor and also enhance the ease of handling on the part of the user while keeping an apparatus cost from rising. For this purpose, in a serial type ink jet printing apparatus, a travel range in which the print head can be moved is detected and it is decided whether the detected travel range is a proper travel range. When, for example, the travel range is determined to be less than a preset range, it is decided that there is an obstacle in a path of the print head and a decision result is displayed. When the travel range is determined to be a certain range, it is decided that the ink tank is not properly mounted on the print head and the corresponding indication is made.

Ink jet printing apparatus and method of controlling ink jet printing apparatus

A printing apparatus of the invention acquires a velocity and an acceleration of a printing medium when a rear end of the printing medium passes through a detection lever. A correction amount for the rear end of the printing medium is determined in accordance with the velocity and the acceleration of the printing medium. The correction amount is a transportation amount of the printing medium during a physical return time after the rear end of the printing medium passes through the detection lever until the detection lever is detected by a sensor. A remaining region from a printing position of a print head up to the rear end of the printing medium is controlled in accordance with the correction amount for the rear end of printing medium.

Printing apparatus and method for printing an image

A color image processing apparatus which codes image data while suppressing image deterioration. A color character area discrimination unit divides an input color image into 16&times;16-pixel blocks, and determines whether or not each block expresses color characters. In accordance with the determination result, a sub-sampling ratio switching unit switches the sampling ratio for each of color components YCrCb composing the color image data so that the sample ratio is Y:Cr:Cb&equals;4:2:2 or Y:Cr:Cb&equals;4:1:1. Subsequently, sampling is performed in accordance with the switched sampling ratio, and DCT, linear quantization and entropy coding are then performed.

Color image processing method and apparatus thereof

An ink jet printer which has a cover that can be opened to expose the interior of the apparatus to allow the ink tank and print head to be replaced and in which when the cover is detected to be opened, the apparatus is set so that the replacement of the ink tank or print head can be made, when the cover is opened for other purposes not accompanied by the replacement, unnecessary operations such as the replacement enable setting are eliminated. Hence, when the cover is opened during a standby state in which no print data is received and there is no error, the above setting (e.g., moving the print head to the replacement position) is permitted. When the cover is opened during the printing operation or in the presence of a print medium jam error, the apparatus does not permit the setting and waits for the cover to be closed. In this way, the predetermined setting in the event of the opening of the cover is properly controlled according to the mode of the apparatus to improve the operability and the operation efficiency.

Scanning apparatus

An image processor includes a video processing circuit which converts and processes a video signal. A first image processing circuit further processes the video signal processed by the video processing circuit, with emphasis on image gradation to generate image data matching the recording format of a recording apparatus. A second image processing circuit further processes the video signal processed by the video processing circuit, with emphasis on the sharpness of image contours to generate image data matching the recording format of the recording apparatus. A selecting circuit selects the first or second image processing circuit based on the type of video signal processed by the video processing circuit.

Image processing apparatus

One object of the present invention is to cut out areas of different natures from an image hierarchically. For encoding, an area identifier identifies areas of an input image. A multivalued area is encoded in a multivalued encoding mode. As for a bicolor area, typical-color values are computed and then encoded in a binary encoding mode. For decoding, multivalued coded data is decoded in a multivalued decoding mode. As for binary-coded data, values of pixels of a binary image resulting from binary decoding are transformed into multivalued data using associated typical-color values. The multivalued data is structured according to structural information, wherein areas of the data may be superposed mutually. Thus, an image is reconstructed.

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Yokohama, Japan

Norio Shimura