Image forming apparatus

Details Image forming apparatus Image forming apparatus

1998-11-02

1999-11-09

Grimley, Arthur T.

Electrophotography

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271270, 399388, 399396, G03G 1500

Patent

active

059830662

ABSTRACT:
An image forming apparatus includes an image transfer unit disposed along a sheet feed path. A sheet feed roller feeds a sheet toward an image transfer position where an image can be transferred by the image transfer unit. A sheet detect unit detects the sheet fed by the sheet feed roller and a control unit controls the rotational operation of the sheet feed roller in accordance with a detection result of the sheet detect unit. As such, a sheet feed path length, which extends between the image transfer position and a detection position where the sheet is detected by the sheet detect unit, is set at an integer multiple of a circumferential length of the sheet feed roller.

REFERENCES:
patent: 4129377 (1978-12-01), Miyamoto et al.
patent: 4799084 (1989-01-01), Koike et al.
patent: 4823159 (1989-04-01), Yamamoto et al.
patent: 5008710 (1991-04-01), Kobayashi et al.
patent: 5043771 (1991-08-01), Shibata et al.
patent: 5482265 (1996-01-01), Nakazato et al.
patent: 5543909 (1996-08-01), Quesnel

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