Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-05-13

1993-07-06

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Original moves continuously

G03B 2748, G03B 2750, G03B 2770

Patent

active

052258688

ABSTRACT:
An image forming apparatus having a document transporting mechanism which transports documents one by one from a document feed tray, to the exposure location on a platen and which prefeeds the next document to a position before the platen, and a control mechanism which in response to an instruction of stopping the image form operation controls the operation of the document transporting mechanism so as to transport a document prefed to the position before the platen, in a predetermined direction. When a trouble occurs in the main body of the image forming apparatus during the image forming operation and the stop instruction is issued, a document on the platen is immediately transported to a document discharge tray, and also a document which has been prefed to the position before the platen is transported to a predetermined position (onto the platen, the document discharge tray or the document feed tray). The prefed document is not left stand in a loop state for a long period of time, thereby preventing a document from having a tendency to curl and a document jam from occurring.

REFERENCES:
patent: 3728020 (1973-04-01), Abrams et al.
patent: 5078379 (1992-01-01), Leisner

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