Image forming apparatus to control noise and method thereof

Details Image forming apparatus to control noise and method thereof Image forming apparatus to control noise and method thereof

2011-07-26

2011-07-26

Tran, Hoan (Department: 2884)

Electrophotography

Machine operation

Having power supply

C399S069000, C399S070000

Reexamination Certificate

active

07986896

ABSTRACT:
Provided is an image forming apparatus and a method of controlling the same. When an external power is supplied to a heating resistance member of a fusing unit in the image forming apparatus that is in a standby mode, a power supply unit supplies an internal power to a different load (for example, an exposure unit, a developing unit, or a transfer unit) in one or more time sections so as to supply the internal power to the load at a continuously changing operating frequency.

REFERENCES:
patent: 7116923 (2006-10-01), Kishi et al.
patent: 7639963 (2009-12-01), Matsuo
patent: 2007/0189795 (2007-08-01), Chae et al.

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