Image forming apparatus having a contact charger for varying a c

Details Image forming apparatus having a contact charger for varying a c Image forming apparatus having a contact charger for varying a c

1995-01-12

1996-01-16

Moses, R. L.

Photocopying

Contact printing

Light boxes

355209, 355219, G03G 2100

Patent

active

054852480

ABSTRACT:
An image forming apparatus includes an image bearing member for bearing an image, a contact charger for charging the image bearing member, and a detector for detecting an electric current flowing through the charger when the charger changes a potential of a predetermined area of the image bearing member from a first potential to a second potential which is different from the first potential. In another aspect of the invention, the detector detects a flow of current through a second contact charger when a first oscillating voltage is applied by a first contact charger and a second oscillating voltage applied by the second contact charger which is different from the first oscillating voltage.

REFERENCES:
patent: 3935517 (1976-01-01), O'Brien
patent: 4727453 (1988-02-01), Ewing
patent: 4851960 (1989-07-01), Nakamura et al.
patent: 5089851 (1992-02-01), Tanaka et al.
patent: 5140371 (1992-08-01), Ishihara et al.
patent: 5144368 (1992-09-01), Ohzeki et al.
patent: 5160967 (1992-11-01), Tonegawa
patent: 5164779 (1992-11-01), Araya et al.
patent: 5184180 (1993-02-01), Choi

Affiliated with

Also associated with

Rating

Image forming apparatus having a contact charger for varying a c 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 a contact charger for varying a c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus having a contact charger for varying a c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-313312