Image forming apparatus having bimodal charging means

Details Image forming apparatus having bimodal charging means Image forming apparatus having bimodal charging means

1993-10-08

1995-06-20

Beatty, Robert B.

Photocopying

Contact printing

Light boxes

355215, 355221, 355326R, G03G 1502

Patent

active

054264871

ABSTRACT:
An image forming apparatus includes an image member which moves through a path past a series of stations. The series of stations create both first and second toner images on the same frame of the image member which images can be of different color. When the apparatus is used to form single color images, a charging station used in creating the second toner image is turned to a standby condition. In the standby condition, a bias is maintained on the charging station to repel toner particles from the first toner image that might otherwise accumulate on the charging station.

REFERENCES:
patent: 4791452 (1988-12-01), Kasai et al.
patent: 5001028 (1991-03-01), Mosehauer et al.
patent: 5181072 (1993-01-01), Furuya et al.

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