Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-10-31

2006-10-31

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07130097

ABSTRACT:
There is provided a controller that controls and drives the polygon mirror to a target speed with keeping a predetermined phase. When the controller controls the speed of the polygon mirror along with the image magnification adjustment, the controller controls the polygon mirror with a waiting time t1from an end of the speed control of the polygon mirror for stabilizing before the phase control and a waiting time t2from an end of the phase control of the polygon mirror for stabilizing, the t1and t2being set with a relation of t1<t2.

REFERENCES:
patent: 6724410 (2004-04-01), Arai
patent: 2003-262991 (2003-09-01), None

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