Canon Kabushiki Kaisha

Osamu Sawamura

Hisashi Sakamaki

Masahiro Tomosada

Shunichi Masuda

Katsuichi Shimizu

Katsushi Furuichi

Susumu Sugiura

Tsuneki Inuzuka

Yutaka Komiya

Yoshimasa Kimura

Yoshitomo Goshima

Kazuo Kawakubo

Katsuichi Smimizu

Eisuke Yamamoto

An image processing apparatus having various interrupt-handling capabilities when image formation is interrupted. In one aspect, image formation is interrupted after completion of a predetermined number of image formations when the size of a recording material is indicated as a first size, and image formation is interrupted after a completion of a predetermined number of image formations when a recording material is indicated as a second size. In another aspect, a condition for image formation is selected whereby in the case the selected condition is prevented (e.g., recording on wrong-sized paper), the condition is stored, and after the image formation has commenced, a stop command is inhibited and stored. In another aspect, data concerning image information is entered, the entered data is displayed, and images are formed sequentially in accordance with the data whereby the formation of the images may be interrupted and the remaining number of image formations may be stored and displayed. It is also possible to interrupt the image formation for a predetermined image formation count without entry by the operator.

Image forming apparatus with image forming interruption capabilities

An image forming apparatus in which copying operations are controlled according to a program sequence. The apparatus has an input unit for entering copying instructions and sequence signals, a control unit for controlling active loads in response to signals from the input unit, and logic circuits connected to the control unit for controlling the active loads. The input unit can be used to input a specific instruction signal to set a predetermined data value in a data memory of the control unit, to instruct that a portion of the control program be omitted to permit the apparatus to operate without actually producing an image. Alternatively, or in addition to such feature, the control unit may have a sequence control program which omits specific malfunction detection functions, that program being used to permit performance of a test operation of the apparatus without the need for actually consuming recording sheets or other materials in the test.

Image forming apparatus

There is disclosed an image forming apparatus in which copying operations are controlled according to a program sequence. Such image forming apparatus has an input unit for entering copying instructions and sense signals, a control unit for controlling active loads in response to the outputs from the input unit, and logic circuits connected to the control unit for controlling the active loads.

A method and an apparatus for color conversion capable of converting a particular color of an image original into another color as desired, in which indication is made as to what color of the image original colors other than that designated for the color conversion can be converted into, and, on the basis of this indication, designation for the color conversion in the image original colors other than that previously designated can be done, and, further, on the basis of this color conversion designation, a set of the color-separation filter and the developing color can be automatically selected.

Method and apparatus for color conversion

A device for detecting a body comprises transmitter means, receiver means for receiving the signal from the transmitter means, means for setting the level of a reference signal by the reception signal from the receiver means provided when the body is in a reference condition, to correct the reference signal, which reference signal provides a reference for identifying the reception signal, and comparator means for identifying the reception signal in accordance with the reference level connected to the reference level setting means. The body detecting device effects the detection by the output of the comparator means.

Body detecting device

The exhaust of stocked copying paper and the failure in feeding copying paper are detected so that means for driving a feeding system may be immediately stopped, and no failure in feeding copying paper is detected and failure in discharging copying paper is detected so that every operation in the photocopying machine may be stopped and also the power supply to the photocopying machine may be interrupted. The highly efficient and safeguarded operation of the photocopying machine may be ensured.

Growing community of inventors

Atsugi, Japan

Osamu Sawamura