Image forming apparatus having single sensor for detecting misch

Details Image forming apparatus having single sensor for detecting misch Image forming apparatus having single sensor for detecting misch

1991-09-24

1993-02-09

Moses, Richard L.

Photocopying

Contact printing

Light boxes

355309, G03G 1514

Patent

active

051856336

ABSTRACT:
An image forming apparatus comprising a rotatable transfer drum, chucking member provided at the transfer drum for chucking a transfer paper on the transfer drum and a sensor provided in the vicinity of the transfer drum for detecting the light passing through the transfer drum. In the image forming apparatus, the above single sensor is operable for detecting mischucking of the transfer paper and for detecting whether the transfer paper is a plain paper or OHP paper.

REFERENCES:
patent: 4819025 (1989-04-01), Takahashi et al.
patent: 4851927 (1989-07-01), Moriya
patent: 4862214 (1989-08-01), Kasahara et al.
patent: 4872037 (1989-10-01), Kasahara et al.
patent: 4935776 (1990-06-01), Fukui

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