Image forming apparatus and curl correcting method

An image forming apparatus includes: a curl correction device which corrects curl generated in a recording medium having passed through a fixing device; a temperature/humidity sensor unit which is installed in a conveying path between the fixing device and the curl correction device, and detects and...

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Bibliographic Details
Main Authors HAYAMA YUKO, OOHARA SHUNICHI
Format Patent
LanguageEnglish
Published 12.05.2015
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An image forming apparatus includes: a curl correction device which corrects curl generated in a recording medium having passed through a fixing device; a temperature/humidity sensor unit which is installed in a conveying path between the fixing device and the curl correction device, and detects and outputs temperature and humidity near a surface of the recording medium; a calculation unit which calculates temperature and moisture content of the recording medium from the temperature and humidity output values output from the temperature/humidity sensor unit, and calculates curl correction efficiency of the curl correction device from the temperature and moisture content of the recording medium; a control value determination unit which determines a control value to perform a curl correction in the curl correction device, based on the curl correction efficiency calculated by the calculation unit; and a control unit which controls the curl correction device by the control value.
Bibliography:Application Number: US201313752517