Canon Kabushiki Kaisha

Toshio Honma

Yoshinori Ikeda

Katsushi Furuichi

Yasumichi Suzuki

Masanori Sakai

Toshihiro Kadowaki

Takayuki Komine

Katsumi Murakami

Tetsuya Ohnishi

Hisashi Sakamaki

Kimiyoshi Hayashi

Katsuichi Shimizu

Mitsuru Kurita

Hiroyuki Ichikawa

Yoshiko Horie

Hiroyuki Horii

Koichi Katoh

Hiroshi Itagaki

Yoshikazu Yokomizo

Shizuo Hasegawa

Nobuo Matsuoka

Kenji Sasahara

Tadashi Suzuki

Hiroshi Tanioka

Tomohiro Aoki

Toshirou Kasamura

Hiroaki Takeda

Naoto Arakawa

Yoshimasa Kimura

Hidetoshi Tanaka

Kazuo Kawakubo

Kiyokazu Namekata

Kenichi Takeda

Nobuyuki Watanabe

Tadashi Sato

Yasutomo Suzuki

Yujiro Ando

Tsuneki Inuzuka

Masanori Miyata

Katsuyoshi Maeshima

Masahiro Tomosada

Shigeru Ueda

Masatoshi Ikkatai

Hiroaki Ishii

Hiroshi Omura

Kazuhiko Hirooka

Yoshikuni Tohyama

Sohei Tanaka

Naoji Hayakawa

Hirokazu Uchio

Hitoshi Arai

Saburo Nakazato

Atsutomo Yoshizawa

Norio Nakajima

Kengo Kawamoto

Ikuo Souma

Hironobu Araki

Shuji Murakawa

Yoshikazu Yokohmizo

Masharu Ohkubo

Yashikuni Tohyama

There is disclosed an invention for generating contract information for an image forming apparatus for which the user is going to conclude a contract. The history information of an image forming apparatus used by the user and having a contract history is stored and managed in correlation with the user. Such management is executed in a center server capable communication with the image forming apparatus through a predetermined communication channel. The above-mentioned information includes contract term, machine type, number of print outputs etc. of the image forming apparatus. Also the image forming apparatus to be managed includes that currently contracted and that contracted in the past. In case the user wishes to conclude a new contract for an image forming apparatus, new contract information is generated according to the history information managed by the center server in correlation with the user. This invention provides a system capable of realizing the foregoing.

System, method, and program storage medium for managing printing apparatuses

An image forming apparatus arranged to receive image information from a memory device for storing color image information and then to form an image on an image-forming medium. This apparatus allows an operator to specify the size and the layout of a color image to be formed on the image-forming medium while viewing a display provided on a monitor device. The apparatus can change the size of the color image information read from the memory device to the required magnification in accordance with a command given by the specifying element, thereby producing a printout. In this case, the operator can adjust the image quality of image information to be printed out while visually confirming the quality of the image displayed on the monitor device, whereby no proof printout is needed.

Image forming apparatus containing a display showing an adjustable image

An image processing apparatus reads an image and synthesizes it with another, broadcast-standardized image signal supplied from outside the apparatus and stored in a memory provided in the apparatus.

Image processing apparatus

An image processing apparatus reads an image and synthesizes it with another, broadcast standardized image signal supplied from outside the apparatus and stored in a memory provided in the apparatus.

Color image reproduction apparatus for reproducing retained stored

An image reading apparatus such as a color copying apparatus has a plurality of sensing CCD chips for converting an image of an object into an electrical signal, each sensing CCD chip having a plurality of sensing elements. The apparatus also has a circuit for converting the electrical signal into digital data. A first adjusting circuit is provided for conducting either an operation for obtaining level matching of the electrical signal converted by the sensing chips, or an operation for controlling the gain of the electrical signal converted by the sensing chips. The apparatus further has a second adjusting circuit for effecting compensation for fluctuation of characteristics of the sensing elements of the sensing chips, by making use of the digital data converted by the converting circuit, the second adjusting circuit being adapted for effecting the compensation on the basis of electrical signals which are produced as a result of conversion by the sensing chips from two objects having different levels of density from each other, such as white and black levels. An analog-to-digital converter may also be provided to convert analog data into digital data. In that case, first adjusting means will adjust the analog data discretely, through a step smaller than the quantizing step used in the A/D conversion, and a second adjusting means may preferably further adjust the analog data in accordance with digital data obtained through the A/D conversion.

Image reading apparatus with A/D conversion and adjustment thereof

An image processing apparatus includes an input device for image data, a discriminating device for discriminating a type of an image represented by the image data, a setting device for setting a discrimination standard of the discriminating device, and a display for displaying a condition of the setting device.

Image processing apparatus and method in which a discrimination standard

An image processing system includes an image reader, a first image storing memory, a second image storing memory arranged in an external device, and a unit for synthesizing an image read by the image reader with the image stored in the first image storing memory on the basis of data read out from the second image storing memory.

Image forming system for synthesizing color image data with binary image

An image forming apparatus and an electronic device for outputting data to the image forming apparatus. The image forming apparatus comprises an interface for inputting single bit image data and a command from an external device, a first store for storing the single bit image data, a second store for receiving and storing color data for coloring the single bit image data, and an image forming device for forming a color image on the basis of the data in the first and second stores. The electronic device includes a first output for outputting single bit image data, a second output for outputting a color number for one pixel of color image data, and a third output for outputting both first multi-level color component data for the single bit image data and second multi-level color component data for the color number.

Image forming system for single bit image data

An image reading apparatus such as a color copying apparatus has a plurality of sensing CCD chips for converting an image of an object into an electrical signal, each sensing CCD chip having a plurality of sensing elements. The apparatus also has a circuit for converting the electrical signal into digital data. A first adjusting circuit is provided for conducting either an operation for obtaining level matching of the electrical signal converted by the sensing chips, or an operation for controlling the gain of the electrical signal converted by the sensing chips. The apparatus further has a second adjusting circuit for effecting compensation for fluctuation of characteristics of the sensing elements of the sensing chips, by making use of the digital data converted by the converting circuit, the second adjusting circuit being adapted for effecting the compensation on the basis of electrical signals which are produced as a result of conversion by the sensing chips from two objects having different levels of density from each other, such as white and black levels. An analog-to digital converter may also be provided to convert analog data into digital data may also be provided. In that case, first adjusting means will adjust the analog data discretely, through a step smaller than the quantizing step used in the A/D conversion, and a second adjusting means may preferably further adjust the analog data in accordance with digital data obtained through the A/D conversion.

An image processing apparatus includes a circuit for inputting a plurality of color component signals of a subtractive color system, a circuit for detecting a minimum value signal of the color component signals input by the input means, a circuit for emphasizing a high-frequency component of the minimum value signal detected by the detection means, and a circuit for discriminating a feature of an image in accordance with the minimum value signal whose high-frequency component is emphasized by the emphasizing means.

Feature detection with enhanced edge discrimination

An image forming apparatus includes a device for setting the apparatus in a check mode to check a state of the apparatus and for selectively executing one of a plurality of check operations. In one aspect, each check operation is set using a commonly provided numeral key, and the check mode is unconditionally released using a clear key. In another aspect, one of the check modes includes a test movement of a movable member used in image formation. In still other aspects, sheet transporting operations are controlled based on the location of a sheet jam, or based on the selection of a sheet sorter. The state of each of the image formation devices is checked even if an improper state has already been detected, plural error states are repeatedly displayed in a specific order, and a display unit is commonly used.

Image forming apparatus having error detection with automatic error

An image processing system including: a reproducing apparatus to reproduce a plurality of image signals recorded on a recording medium; and an image forming apparatus to form the image signals of a plurality of picture planes which were read out of the reproducing apparatus as a plurality of visible images. The reproducing apparatus and the image forming apparatus process the plurality of image signals, while communicating with each other via a wire. With this system, since the image recording and reproducing apparatus can be preferably controlled on the image forming apparatus side, the image forming apparatus can be provided in a portable small image recording and reproducing apparatus such as an electronic still camera which executes an electrophotographic image process.

Image processing system

There is provided a color image processing apparatus in which, by making use of an image reading apparatus of a digital full-color copying apparatus, the designated color to be obtained after conversion is input and stored as component ratio of color-separated image data, and monochromatic image data proportional to the gradation levels, e.g., density, lightness, luminance and so forth are obtained from the color separated image data produced from the original image, the monochromatic image data thus obtained being converted into the color separation data corresponding to the component ratio of the designated color to be obtained after conversion, thereby making it possible to preserve the hue of the designated color and to effect color conversion to the designated color having gradation proportional to the gradation of the original image.

Image processing apparatus with color conversion means

This invention provides an image storing apparatus which can store input image information while preserving the aspect ratio thereof. The image storing apparatus compares the memory capacity of a memory device with the size of the input image information to change the size of the input image to the required magnification, thereby preventing the image to be stored from being partially cut away. Moreover, if another image information is allowed to be stored in the memory device, this image information can be stored in the same, whereby image information can be efficiently stored.

Image storing with data compression to accommodate memory capacity

A color image processing apparatus comprises a printer for printing an image corresponding to an original image scanned by an scanner. An image memory is provided into which signals from the color scanner respectively corresponding to plural colors are written and from which signals to be transmitted to the printer are read. The image memory is arranged such that a signal for a writing operation and a signal for a reading operation are substantially simultaneously input. A memory control unit addresses the image memory in either the writing operation or the reading operation. The memory control unit comprises a writing address counter, a reading address counter and a control means. The control means controls the writing address counter and the reading address counter such that image data is read from the image memory before the writing of the image data into the memory is completed.

Color image processing apparatus with memory interface synchronization

Growing community of inventors

Kawasaki, Japan

Toshio Honma