Image forming apparatus having auto/manual exposure amount setti

Details Image forming apparatus having auto/manual exposure amount setti Image forming apparatus having auto/manual exposure amount setti

1992-03-24

1993-12-28

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355208, 355214, G03G 1504, G03B 2772

Patent

active

052744213

ABSTRACT:
An image forming apparatus for forming an image based on an original image of an original on an image carrying member. The apparatus has an auto exposure amount setting mode and a manual exposure amount setting mode. Reflected light from the original image device is detected. A manual device can be moved from a first position to a second position by manual operation, for setting the exposure amount according to a varied amount. Included are a first energizing device for energizing the emitting device on the basis of a result of detecting of the detecting device in the auto exposure amount setting mode, a second energizing device for energizing the emitting device according to the setting of the setting device, a device for determining if a difference between the first position and the second position is larger than a predetermined value, and a device for changing the auto exposure amount setting mode to the manual amount setting mode when the determining device determines the varying condition in the auto exposure amount setting mode.

REFERENCES:
patent: 4361395 (1982-11-01), Washio et al.
patent: 4542985 (1985-09-01), Honma et al.
patent: 4640603 (1987-02-01), Honma
patent: 4699502 (1987-10-01), Araki et al.
patent: 4714945 (1987-12-01), Fujiwara et al.
patent: 4796060 (1989-01-01), Mizude
patent: 4910554 (1990-03-01), Noda
patent: 4974022 (1990-11-01), Nezu

Affiliated with

Also associated with

Rating

Image forming apparatus having auto/manual exposure amount setti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus having auto/manual exposure amount setti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus having auto/manual exposure amount setti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1546790