Image forming apparatus with controller for setting transfer...

Details Image forming apparatus with controller for setting transfer... Image forming apparatus with controller for setting transfer...

2011-03-01

2011-03-01

Beatty, Robert (Department: 2852)

Electrophotography

Control of electrophotography process

Control of transfer

C399S048000

Reexamination Certificate

active

07899349

ABSTRACT:
In an image forming apparatus, temporary constant voltages are corrected by using three voltage-current data obtained by applying voltages at three levels to a primary transfer roller to detect currents corresponding to the voltages, respectively. A surface potential of a photosensitive drum is detected by a potential sensor by changing an exposure intensity of an exposure device at three levels in a state in which the temporary constant voltage is applied to the primary transfer roller. A constant voltage during image formation is determined by correcting the temporary constant voltage by using three voltage-current data obtained by detecting currents when surfaces different in potential by light exposure pass through a primary transfer portion.

REFERENCES:
patent: 3788739 (1974-01-01), Coriale
patent: 5646717 (1997-07-01), Hiroshima et al.
patent: 7072598 (2006-07-01), Takayanagi
patent: 7088933 (2006-08-01), Kitajima
patent: 2004/0218941 (2004-11-01), Katsumi
patent: 02170175 (1990-06-01), None
patent: 5-6112 (1993-01-01), None
patent: 05281860 (1993-10-01), None
patent: 2003-270866 (2003-09-01), None
patent: 2006047489 (2006-02-01), None

Affiliated with

Also associated with

Rating

Image forming apparatus with controller for setting transfer... 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 with controller for setting transfer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus with controller for setting transfer... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2763575