Title:
IMAGE FORMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2009/028731
Kind Code:
A1
Abstract:
An image forming device which prevents occurrence of defective conveyance or
a defective image due to the change of a conveyance speed caused by the durability
and using environment change of a fixation means or a conveyance means and the
kind of a recording material. The image forming device comprises a fixation
unit which heats and fixes a toner image on a recording paper (P), a secondary transcription
part which conveys the recording paper (P) to the fixation unit, a loop sensor
which senses the degree of the loop of the recording paper (P) formed according
to the difference between the conveyance speed of the fixation unit and that of
the secondary transcription part, a CPU which controls the conveyance speed
of the fixation unit, a paper fixation and ejection sensor which senses the used
amount of the fixation unit, and an EEPROM which stores information on the used
amount of the fixation unit sensed by the paper fixation and ejection sensor.
The CPU controls the conveyance speed of the fixation unit by using of the information
on the used amount of the fixation unit stored in the EEPROM and the result of sensing
by the loop sensor.
Inventors:
SUZUKI AKIMICHI (JP)
NANATAKI HIDEO (JP)
WATANABE KENJI (JP)
TAKAGI KENJI (JP)
NANATAKI HIDEO (JP)
WATANABE KENJI (JP)
TAKAGI KENJI (JP)
Application Number:
PCT/JP2008/066014
Publication Date:
March 05, 2009
Filing Date:
August 29, 2008
Export Citation:
Assignee:
CANON KK (JP)
SUZUKI AKIMICHI (JP)
NANATAKI HIDEO (JP)
WATANABE KENJI (JP)
TAKAGI KENJI (JP)
SUZUKI AKIMICHI (JP)
NANATAKI HIDEO (JP)
WATANABE KENJI (JP)
TAKAGI KENJI (JP)
International Classes:
G03G21/14; G03G15/20
Foreign References:
JP2006139150A | 2006-06-01 | |||
JP2005203181A | 2005-07-28 | |||
JP2002372888A | 2002-12-26 | |||
JP2005338562A | 2005-12-08 | |||
JP2007058083A | 2007-03-08 |
Attorney, Agent or Firm:
OKABE, Masao et al. (Fuji Bldg.2-3, Marunouchi 3-chome,Chiyoda-k, Tokyo 05, JP)
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