Timing adjustment in a copying machine

Details Timing adjustment in a copying machine Timing adjustment in a copying machine

1983-10-14

1986-05-20

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 14SH, G03G 1500, G03G 2100

Patent

active

045897638

ABSTRACT:
A timing adjustment system in a copying machine includes a slit plate secured to a shaft of a photosensitive drum for developing a pulse signal of a period (t') in response to the rotation of the photosensitive drum. A copy paper supply system is enabled when a predetermined time has passed after an optical system initiates the movement. The predetermined time is determined by a pulse number (N) of the pulse signal and a time period (T) from the development of the N-th pulse signal. That is, the actual copy paper supply is conducted when (N.multidot.t'+T) has passed after the optical system initiated the movement. A modification preset system is provided for modifying the pulse number (N) to (N.sub.m) and the time period (T) to (T.sub.m) by taking account of the actual copying operation.

REFERENCES:
patent: 4214833 (1980-07-01), Kono
patent: 4248527 (1981-02-01), Akiyama et al.
patent: 4260242 (1981-04-01), Nishikawa
patent: 4547062 (1985-10-01), Fujiwara

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