Image forming apparatus

Details Image forming apparatus Image forming apparatus

2011-06-28

2011-06-28

Porta, David P (Department: 2884)

Electrophotography

Image formation

Photoconductive member

C399S038000

Reexamination Certificate

active

07970317

ABSTRACT:
An image forming apparatus includes a rotating member, a driving force transmission unit configured to transmit drive force to the rotating member, a drive unit configured to rotationally drive the rotating member via the driving force transmission unit, a detecting unit configured to detect a velocity of the rotating member and generate velocity data based in the detected velocity, and a control unit configured to control the drive unit based on the velocity data. The control unit calculates a correction value to be added to a drive velocity instruction value so as to cancel velocity variation of velocity data during one rotation of the rotating member, and a correction value is controlled so as to eliminate a difference between a correction drive instruction value obtained by adding a correction value to a drive velocity instruction value and the drive velocity instruction value.

REFERENCES:
patent: 5394222 (1995-02-01), Genovese
patent: 2004/0156654 (2004-08-01), Nishizaki
patent: 2006/0088338 (2006-04-01), Matsuda et al.
patent: 02-043574 (1990-02-01), None
patent: 05-252774 (1993-09-01), None
patent: 07-303385 (1995-11-01), None
patent: 10-066373 (1998-03-01), None

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