Image forming apparatus having enhanced controlling method...

Details Image forming apparatus having enhanced controlling method... Image forming apparatus having enhanced controlling method...

2011-08-02

2011-08-02

Porta, David P (Department: 2884)

Electrophotography

Image formation

Photoconductive member

C399S301000

Reexamination Certificate

active

07991326

ABSTRACT:
An image forming apparatus is disclosed. In at least one embodiment, the apparatus includes a plurality of image carriers to carry an image; a plurality of drivers to drive the image carriers; a plurality of drive-force transmitting members to transmit a driving-force from the drivers to image carriers; a developing unit, provided to the image carriers, to develop the image; a transfer member, facing the image carriers, to receive the image from the image carriers sequentially; an image detector to detect the image on the transfer member to check a detection timing of the image; a sensor, provided to each of the image carriers, to detect a rotational speed of image carriers; and a controller to conduct an image-to-image displacement control, a speed-deviation checking, and a phase adjustment control for each of the plurality of image carriers with the image detector and sensor.

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European Search Report dated Apr. 23, 2007.

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