US 5,182,597 AGranted

Image forming device

AssigneeCanon Kabushiki Kaisha

InventorsShunichi Masuda, Katsuichi Shimizu, Toshiaki Yagasaki, Hisashi Sakamaki

Life of this patent

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Abstract

A printing or copying apparatus of a type provided with a recording medium, operable device for forming an image on the recording medium, device for operating a first signal required for the timing operation of the operable device, keys for instructing to start or stop the execution of image formation, first control device controlling the operable device in accordance with the first signal, and which comprises a memory for storing a program for operation control of the operable device for image formation, and second control device for controlling the first control device in accordance with the key instructing device for controlling the execution of image formation and for controlling at least one of the operable devices, and which comprises a memory for storing a program for operation control of the first control device.

Claims4

Dependent claims

An image forming apparatus, comprising:

conveying means for conveying a recording material along a predetermined path that includes a first position and a second position downstream from the first position;
jam detecting means for detecting a recording material jam at the first position and for detecting a recording material jam at the second position;
first indicating means, responsive to said jam detecting means detecting a recording material jam at the first position, for displaying an indication of the first position in a figure indicative of a general appearance of said image forming apparatus;
and
second indicating means, responsive to said jam detecting means detecting a recording material jam at the second position, for displaying an indication of the second position in a figure indicative of a general appearance of said image forming apparatus;
wherein the figure indicative of the general appearance of said image forming apparatus is not visible when a jam is not detected by said jam detecting means.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/660,741Filed 25 Feb 1991 · division
Priority: JP 53-12672015 Oct 1978
Granted: 26 Jan 1993
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G03G 21/14
Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge: electronic sequencing control
G03G 15/30
In which projection is obtained by line scanning: in which projection is formed on a drum
G03G
Electrography

Family

Serial83,643Parent of this continuation · filed 11 Oct 1979
Serial379,677Parent of this continuation · filed 19 May 1982
Serial297,344Parent of this division · filed 17 Jan 1989
US 5,003,346 AParent of this division
US 4,811,051 AParent of this continuation
US 5,182,597 AThis patent

From the US filing history. Foreign family members aren’t listed.