Canon Kabushiki Kaisha

Koichi Honma

Hisashi Ishikawa

Hiroshi Atobe

Yuji Konno

Tadayoshi Nakayama

Nobutaka Miyake

Kenji Hara

Yukiyoshi Hikichi

Mikio Hama

Hidekazu Tominaga

Hironobu Kitabatake

An image processing system includes a host computer which generates print data and a printer which prints an image based on the print data. The host computer sets attribute information which indicates a part of the print data which is allowed to be visualized and a part of the print data which is prohibited to be visualized. In addition, the host computer also sets authentication information required for reading the part prohibited to be visualized, and transmits the print data, the attribute information, and the authentication information to the printer. The printer prints a visual image of the part allowed to be visualized on a paper medium provided with an RFID chip and stores the part prohibited to be visualized in the RFID chip. In addition, the printer prints the information stored in the RFID chip on another paper medium as a visual image after authentication with the authentication information.

Image processing apparatus for treating recording medium provided with RFID chip

An image output apparatus capable of preventing occurrence of quality degradation problem due to fixing failure such as fixing offset at a low cost, by rotating fixing rollers at timing other than that of paper discharge processing. An engine transfers a toner image generated based on image information onto a print sheet, and fixes the transferred toner image to the print sheet by a fixer with fixing rollers. A number of print sheet detector detects whether or not the number of discharged pages has become a predetermined number, and if the number of discharged pages has become the predetermined number, the fixing rollers are rotated for a predetermined period after the completion of page discharge, by an instruction of post rotation instructor.

Image output apparatus and control method therefor

When a printer receives print data in the form of PDL, commands are analyzed and intermediate data is stored in a page buffer ( ). Rotation of a polygon mirror is started at this time by a scanner pre-rotation command unit ( ), after which bitmap data is expanded by a bitmap expanding processing unit ( ) and printed. When printing starts, the polygon mirror is already rotating. This makes it possible to shorten first-page discharge time.

Image output apparatus and method of controlling same

An image processing apparatus and method in which plural gradation-information storage units are provided, and at least one of those units is selected to store a given body of gradation information based on command information, such as resolution information. The different units store gradation information in different forms, e.g., compressed and uncompressed.

Discriminating an image data characteristic and controlling storage of

An image encoding apparatus of this invention extracts a character/line image from a multi-value image, and substitutes image information corresponding to the extracted character/line image with substitution data based on the image information. Thereafter, the apparatus encodes the image information corresponding to the character/line image, and the remaining image information by different methods, thereby performing efficient image encoding while preserving quality of a character/line image in a multi-value image.

Image encoding apparatus

An image processing apparatus and method in which plural gradation-information storage units are provided, and at least one of those units is selected to store a given body of gradation informatin based on command information, such as resolution information. The different units store gradation information in different forms, e.g., compressed and uncompressed.

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Tokyo, Japan

Koichi Honma