Oxidation catalyst unit, wet-type electrophotographic image...

Details Oxidation catalyst unit, wet-type electrophotographic image... Oxidation catalyst unit, wet-type electrophotographic image...

2007-09-11

2007-09-11

Gray, David M. (Department: 2852)

Electrophotography

Internal machine environment

Forced air circulation

C399S055000

Reexamination Certificate

active

11097164

ABSTRACT:
An oxidation catalyst unit for judging a life span of an oxidation catalyst and a wet-type electrophotographic image forming apparatus having the oxidation catalyst unit, and a method of judging the life span of the oxidation catalyst. The oxidation catalyst unit includes a duct unit, a fan motor, a heater, an oxidation catalyst filter, and a temperature sensing unit. The temperature sensing unit senses upper and lower atmospheric temperatures of the oxidation catalyst filter. A controller of the wet-type electrophotographic image forming apparatus having the oxidation catalyst unit then compares data on the upper and lower atmosphere temperatures sensed by the temperature sensing unit with input reference data to judge the life span of the oxidation catalyst.

REFERENCES:
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patent: 2000-162933 (2000-06-01), None
patent: 1999-0074129 (1999-10-01), None
patent: 2000-0018735 (2000-04-01), None

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