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Patent Searching and Data


Title:
IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2005300696
Kind Code:
A
Abstract:

To provide an image forming apparatus for shortening the rise time, by regulating an energization amount to a prescribed fixing heater from among a plurality of the fixing heaters in the rising mode.

The image forming apparatus 1 performs power control processing for reducing the energized amount to a first fixing heater 6a heating a first fixing roller of a comparatively large capacity from among the two fixing heaters 6a and 6b down to only the electrical energy necessary for energization to load, except for the fixing heaters 6a and 6b, by controlling the on/off signal output from a control part 10 to triacs 23 and 24, when energization to load except for the fixing heaters 6a and 6b is conducted. Thus, energization to the fixing heaters 6a and 6b is efficiently performed, while properly securing the energization amount to load, except for the fixing heaters, power can be efficiently used and the rise time is shortened to improve usability.


Inventors:
FUKUDA HARUHIKO
Application Number:
JP2004113711A
Publication Date:
October 27, 2005
Filing Date:
April 08, 2004
Export Citation:
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Assignee:
RICOH KK
International Classes:
G03G21/00; G03G15/20; (IPC1-7): G03G15/20; G03G21/00