Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-05-08

1994-04-12

Smith, Matthew S.

Photocopying

Contact printing

Light boxes

355203, 355205, 355208, 355296, G03G 2100

Patent

active

053030117

ABSTRACT:
An image forming apparatus. In a copy control mode, a main motor, an eraser, a cleaning bias power source, a cleaning motor, a developing bias power source, a discharge lamp, and a pretransfer discharger are turned on. Then, a precleaning discharger and a main charger are turned on. After such units have been stabilized, a developing motor is energized. Even when a developing unit is operated while an image forming operation is not under way, a toner and a carrier forming a magnet brush on a developing roller included in the developing unit are prevented from depositing on a photoconductive element and, therefore, from being scattered around, damaging the photoconductive element or contaminating the background. Further, the carrier is prevented from causing a spark to occur in a corona discharger and burning the discharger by entering it.

REFERENCES:
patent: 4032227 (1977-06-01), Hubbard et al.
patent: 4777512 (1988-10-01), Takahashi et al.
patent: 4786942 (1988-11-01), Kusumoto et al.
patent: 4955317 (1990-09-01), Kinoshita et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2102672