Method of rotating revolver unit using a plurality of motors

Details Method of rotating revolver unit using a plurality of motors Method of rotating revolver unit using a plurality of motors

2007-12-12

2010-12-07

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S167000

Reexamination Certificate

active

07848681

ABSTRACT:
According to an embodiment of the invention, a revolver unit is rotationally driven by using three stepping motors. The weight of developing cartridges loaded on the revolver unit is identified on the basis of the quantity of remaining toner in toner cartridges. At the time of rotationally driving the revolver unit, output timing of the stepping motor closer to the developing cartridge which has a large quantity of remaining toner and has a heavy weight is made earlier, and output timing of the stepping motor far from this developing cartridge is delayed.

REFERENCES:
patent: 5325151 (1994-06-01), Kimura et al.
patent: 2007/0184837 (2007-08-01), Hohl et al.
patent: 11-316479 (1999-11-01), None
patent: 2006243481 (2006-09-01), None

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