Image forming apparatus

Details Image forming apparatus Image forming apparatus

1991-10-09

1992-10-27

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

355309, 355311, 355314, G03B 2758

Patent

active

051593874

ABSTRACT:
An image forming apparatus having a plurality of automatic sheet feeding portions and a manual sheet feeding portion in which recording papers are fed by the sheet supplying roller of one of the automatic sheet feeding portions wherein a warning of the presence of paper at the manual sheet feeding portion is controlled to inhibit copy operation for prevention of feeding the paper at the manual sheet feeding portion when a paper supply port is switched to the automatic sheet feeding portion whose feeding mechanism operates in conjunction with the manual sheet feeder portion and a paper sensor detects the paper at the manual sheet feeding portion.

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patent: 4337935 (1982-07-01), Sawada et al.
patent: 4394008 (1983-07-01), Sugiyama
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patent: 4483528 (1984-11-01), Takeyama et al.
patent: 4569586 (1986-02-01), Koyama
patent: 4633405 (1986-12-01), Ito et al.
patent: 4711556 (1987-12-01), Abuyama
patent: 4896871 (1990-01-01), Idenawa

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