Methods for controlling environmental conditions in an...

Details Methods for controlling environmental conditions in an... Methods for controlling environmental conditions in an...

2008-09-11

2011-10-25

Grainger, Quana M (Department: 2852)

Electrophotography

Internal machine environment

Humidity

Reexamination Certificate

active

08045879

ABSTRACT:
Disclosed are a method of controlling moisture in an electrophotographic apparatus having a fuser assembly, and corresponding electrophotographic apparatus. The method includes measuring a cavity temperature of an inner portion of the electophotographic apparatus, measuring a cavity relative humidity of an inner portion of the electophotographic apparatus, calculating a cavity dewpoint temperature using the measured cavity temperature and the measured cavity relative humidity, determining a difference between the cavity temperature and the cavity dewpoint temperature, and if the difference between the cavity temperature and the cavity dewpoint temperature drops below a predetermined threshold, turning on a heater device in the fuser assembly to control moisture in the electrophotographic apparatus.

REFERENCES:
patent: 5530523 (1996-06-01), Kawabata
patent: 6337957 (2002-01-01), Tamaki et al.
patent: 6505832 (2003-01-01), Moore et al.
patent: 2006/0222385 (2006-10-01), Serita
patent: 2005181779 (2005-07-01), None
patent: 2008111923 (2008-05-01), None

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