Image forming apparatus featuring a controller for switching...

Details Image forming apparatus featuring a controller for switching... Image forming apparatus featuring a controller for switching...

2007-08-14

2007-08-14

Grainger, Quana (Department: 2852)

Electrophotography

Control of electrophotography process

Control of transfer

C399S045000

Reexamination Certificate

active

11348355

ABSTRACT:
To prevent jamming with small-sized print materials without disturbing an image located at a trailing end of a print material, an image forming apparatus includes a photosensitive drum that carries a toner image, a transfer device which can apply a transfer bias to the transfer roller to transfer the toner image to a print material passing through the transfer nip portion, and a control device for controlling a transfer bias set value set in order to apply a predetermined transfer bias to the transfer roller. The control device switches a first transfer bias set value to a second bias set value smaller than the first transfer bias set value while the print material is passing through the transfer nip portion, in order to change the transfer bias applied to the transfer roller.

REFERENCES:
patent: 5179397 (1993-01-01), Ohzeki et al.
patent: 5253022 (1993-10-01), Takeuchi et al.
patent: 5541718 (1996-07-01), Oono
patent: 5713063 (1998-01-01), Oono
patent: 5761572 (1998-06-01), Watanabe et al.
patent: 5884121 (1999-03-01), Kyung
patent: 6125258 (2000-09-01), Umetani et al.
patent: 6347200 (2002-02-01), Shigeta et al.
patent: 6510296 (2003-01-01), Less et al.
patent: 2003/0066805 (2003-04-01), Andou et al.
patent: 8-240969 (1996-09-01), None
patent: 2614309 (1997-02-01), None
patent: 10-198183 (1998-07-01), None
patent: 2951993 (1999-07-01), None
patent: 2001-83812 (2001-03-01), None
patent: 2003-88730 (2003-03-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3889689