Image forming apparatus

Details Image forming apparatus Image forming apparatus

2008-11-12

2010-12-07

Lee, Susan S (Department: 2884)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S319000

Reexamination Certificate

active

07848669

ABSTRACT:
An image forming apparatus includes an image bearing member for bearing a toner image, a transfer member for forming a transfer portion for transferring the toner image onto a recording material in contact with the image bearing member, a vibration imparting portion for imparting vibration at a variable frequency to the recording material having passed through the transfer portion, and a control portion for controlling the frequency by the vibration imparting portion so that the frequency is decreased with an increasing length of the recording material having passed through the transfer portion during a process of passing the recording material through the transfer portion.

REFERENCES:
patent: 3932035 (1976-01-01), Sato et al.
patent: 5493372 (1996-02-01), Mashtare et al.
patent: 6385429 (2002-05-01), Weber et al.
patent: 08190282 (1996-07-01), None
patent: 2000344392 (2000-12-01), None
patent: 2005134745 (2005-05-01), None
patent: 2005-338423 (2005-12-01), None
patent: 2007-140413 (2007-06-01), None

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