Method for effecting registration for a copying apparatus

Details Method for effecting registration for a copying apparatus Method for effecting registration for a copying apparatus

Filed on

1978-02-14

Date issued

1980-08-12

Examiner

Moses, R. L.

Patent Class

Photocopying

SubClass

Including fiber optics

Other Related Categories

355 14R, 355 55, 355 77, G03G 1500

Type

Patent

Status

active

Patent number

042170524

Description

ABSTRACT:
In copying apparatus having a magnification ratio varying device, wherein a photosensitive member in motion is exposed to an optical image of an original by slit exposing to form an electrostatic latent image thereon and the original scanning velocity is varied in accordance with the magnification ratio selected, it is necessary to effect registration of the forward end of the image of an original with the leading end of a photosensitive sheet or a transfer-printing sheet.
The above-mentioned registration is effected by delivering a copy sheet simultaneously as or after lapse of a predetermined time following the production of a detection signal by a detection means, which detecting position is varied in accordance with the magnification ratio selected.

REFERENCES:
patent: 3834805 (1974-09-01), Pichierri
patent: 4007986 (1977-02-01), Komori et al.
patent: 4033691 (1977-07-01), Bierworth et al.
patent: 4080062 (1978-03-01), Torigai et al
patent: 4126389 (1978-11-01), Ikeda et al.

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