Image forming apparatus addressing an abnormality in the...

Details Image forming apparatus addressing an abnormality in the... Image forming apparatus addressing an abnormality in the...

2011-01-18

2011-01-18

Gray, David M (Department: 2852)

Electrophotography

Diagnostics

C399S010000, C399S036000, C399S088000

Reexamination Certificate

active

07873287

ABSTRACT:
An image forming apparatus according to the invention includes a cooling fan as a cooling device, an image formation processing unit, a changeover unit, a main control unit, a secondary control unit, and a power supply unit. The main control unit and the secondary control unit make an appropriate action in association with each other in the event of the occurrence of an abnormality in the cooling device. The changeover unit is configured to connect the image formation processing unit to the main image formation control unit in the main control unit in a case where power is supplied to the main control unit, and to connect the image formation processing unit to the secondary image formation control unit in the secondary control unit in a case where power supply to the main control unit is stopped by the power supply control unit in the secondary control unit.

REFERENCES:
patent: 5620264 (1997-04-01), Kagita
patent: 6185481 (2001-02-01), Kondou et al.
patent: 11-134220 (1999-05-01), None
patent: 2005-148669 (2005-06-01), None

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