Canon Kabushiki Kaisha

Yutaka Komiya

Masanori Miyata

Masayuki Hirose

Shinichi Nakamura

Tsuneki Inuzuka

Masahiro Tomosada

Hideki Adachi

Hisashi Sakamaki

Hajime Katayama

Katsumi Murakami

Tateki Nagaoka

Hirotoshi Kishi

Hiroshi Nitanda

Noriyoshi Iida

Toshihiko Mori

Kazuo Yoshinaga

Nobuatsu Sasanuma

Katsuichi Shimizu

Shinobu Arimoto

Takehiko Nakai

Toshio Hayashi

Hiroyuki Miyake

Tsutomu Utagawa

Tetsuya Nagase

Yoshimasa Kimura

Yusaku Takada

Tomobumi Nakayama

Koji Suzuki

Toru Takahashi

Masayoshi Takahashi

Tsuyoshi Watanabe

Seiji Sagara

Masato Ishida

Katsushi Furuichi

Kazuki Miyamoto

Koichi Murakami

Takaji Yonemori

Yoshitomo Goshima

Kazuo Kawakubo

Osamu Sawamura

Ikuo Soma

Koichi Takada

Eiichi Kondo

Tamotu Magome

Yousaku Takada

Sakamaki Hisahi

A specified original that is not supposed to be copied is marked with a pattern that is formed by infrared reflected light. A copying apparatus includes a detecting unit for detecting the pattern and determines that an original is the specified original in accordance with the detection by the detecting unit. A copying operation is controlled in accordance with the determination of whether the original is the specified original that is not supposed to be copied.

Image processing apparatus for determining whether an image contains a

Image processing apparatus having means for detecting non-visible light,

An image formation apparatus such as a copying machine has a standard white plate, an optical system for forming a latent image on a photosensitive drum, a photosensor such as a linear image sensor for detecting the amounts of light reflected from the standard white plate and an original, and a control section including a CPU and an exposure control circuit and/or a bias control circuit for controlling the light exposure amount or the developing bias voltage in accordance with the difference between the light amounts from the standard white plate and the original.

Image forming apparatus including means for controlling the amount of

An image processing apparatus including an image processing unit, computer controller with a memory for storing a program for controlling the processing unit, clock pulse generator for executing the stored computer control program and a divider for dividing the generated clock pulses. The computer controller also receives and counts the clock pulses divided by the divider and controls the processing sequence in accordance with the count.

Image forming process control method and apparatus

An image forming apparatus capable of reserving one or more copy modes independently of a currently performed image forming operation by the insertion of a card device such as an IC card in which are programmed, by means of input switches, at least one operational mode program. The card device is inserted into a card inlet formed in the main body of the apparatus. This card device is also programmed with information on official use management and information on a copy mode to be set. A copying operation is started when this card is inserted into the card inlet to check the use management information and copy mode information and when the programmed operational mode is determined to be useable in the apparatus.

Image forming apparatus with card device input

An image forming apparatus for forming an image on a recording material. The apparatus includes a control mechanism for controlling the forming of images, or the cessation thereof, in response to signals from several detectors. The detectors detect an improper state of operation of the apparatus, such as the jamming of recording material or the absence of recording material in the apparatus. Also provided is a mechanism for permitting the apparatus to operate despite the occurrence of the improper state, which permits testing of the apparatus.

There is an image forming apparatus in which images of a plurality of originals set on the original plate glass are individually exposed, scanned and read, and the read images are synthesized and recorded at arbitrary positions on a recording paper. This apparatus also has a device to record the images on the front and back surfaces of the recording paper. The synthetic recording and the front and back surface recording can be arbitrarily switched and selected. This apparatus is provided with a trimming function to erase unnecessary image portions of the images, a masking function to prevent the shaded portions from being recorded on an paper, and the image shift function to adjust the synthesizing positions of the images on the recording paper for every image. In the serial page copy mode adapted for book images, the masking function is automatically selected and the recording positions on the front and back surfaces of the recording paper are aligned to either one of the right and left sides of the paper, so that the binding margins can be secured on one selected side of the paper. The masking function is released when the serial page copy mode is released.

Image forming apparatus having synthetic recording functions

There is provided a motor control device comprising a motor; an apparatus for entering the number of revolutions of the motor; a detector that detects the number of revolutions of the motor; and a microcomputer for entering the output from the detector and a controlling the motor according to predetermined programs, wherein the microcomputer comprises a counter to which a count value is set according to a circuit from the input to form a reference frequency signal and a circuit for forming a phase error signal according to the reference frequency signal and the output of the detector and outputs a signal for driving the motor based on the phase error signal.

Motor control device

There is disclosed an image forming apparatus capable of controlling the image forming conditions in different modes according to the magnification of the image to be formed, or according to the process speed.

Image forming apparatus

There is an image forming apparatus in which images of a plurality of originals set on the original plate glass are individually exposed, scanned and read, and the read images are synthesized and recorded at arbitrary positions on a recording paper. This apparatus also has a device to record the images on the front and back surfaces of the recording paper. The synthetic recording and the front and back surface recording can be arbitrarily switched and selected. This apparatus is provided with a trimming function to erase unnecessary image portions of the images, a masking function to prevent the shaded portions from being recorded on the paper, and an image shift function to adjust the synthesizing positions of the images on the recording paper for every image. In the serial page copy mode adapted for book images, the masking function is automatically selected and the recording positions on the front and back surfaces of the recording paper are aligned to either one of the right and left sides of the paper, so that the binding margins can be secured on one selected side of the paper. The masking function is released when the serial page copy mode is released.

Image forming apparatus including exposure scanning means

A copying machine including a photoelectric converter to photoelectrically convert an original image, a reference density signal generator to generate reference density signals, an A/D converter to A/D convert the signal produced by the photoelectric converter based on the reference signals from the reference density signal generator, a regional value allotment circuit which generates regional value signals for two values sequentially in synchronism with a picture element read by the photoelectric converter, a selector to select the regional value or regional value allotment, and an output device to output a reproduced signal from the selected regional value allotment signal coming from the regional value allotment circuit and the converted signal coming from the A/D converter in order to obtain a copy having desired intermediate tone.

Image reproducing equipment

There is provided a moving body control device comprising a motor for driving a moving body, detector for detecting the speed of the motor, memory for storing a program for the phase comparison control of the speed of the motor, and control means for controlling the motor according to said program by inputting the output from the detector.

Image forming system

An image forming apparatus comprises latent image forming means for forming a latent image on a photosensitive medium, reference latent image forming means for forming a reference latent image adjacent to the latent image, a plurality of light-emitting means disposed at intervals of a pitch D equal to or smaller than the width l of the reference latent image, and means for drivingly controlling the plurality of light-emitting means in accordance with the size of the latent image.

An image forming apparatus for forming an image on a recording material wherein a control mechanism is provided for controlling the forming of images, or the cessation thereof in response to the detection of an improper state of operation of such apparatus. Accordingly, image processing may be effected in a desired manner, or may be interrupted in response to the detection of an improper state such as the jamming of recording material or the absence of recording material in the apparatus.

Image forming process control method and apparatus related to control

An image forming system has on original size detector, a paper size selection key, a magnification factor selection key, a paper size automatic selection key, a magnification factor automatic set key, a display for displaying if the magnification factor automatic set key, a display for displaying if the magnification factor automatic selection mode is selected, a display for displaying if the paper size automatic selection mode is selected, a magnification factor automatic set unit for automatically setting a magnification factor when the magnification factor automatic mode is set, a paper size automatic selector for automatically selecting a paper size when the paper size automatic selection mode is set, a mode reset unit for resetting a proper mode when a manually input paper size and an automatically calculated paper size are both available or when a manually input magnification factor and an automatically calculated magnification factor are both available, and an automatic selection mode controller for generating an adjusted paper size or an adjusted magnification factor when a copy operation can be performed with the adjusted paper size or magnification factor even if a conflict has occurred.

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Tokyo, Japan

Yutaka Komiya