Image forming apparatus and curl correcting method

An image forming apparatus includes: a curl correction device (40) which corrects curl generated in a recording medium (P) having passed through a fixing device (30, 34, 37); a temperature/humidity sensor unit (41) which is installed in a conveying path between the fixing device (30, 34, 37) and the...

Full description

Saved in:
Bibliographic Details
Main Authors OOHARA, SHUNICHI, HAYAMA, YUKO
Format Patent
LanguageEnglish
French
German
Published 07.08.2013
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:An image forming apparatus includes: a curl correction device (40) which corrects curl generated in a recording medium (P) having passed through a fixing device (30, 34, 37); a temperature/humidity sensor unit (41) which is installed in a conveying path between the fixing device (30, 34, 37) and the curl correction device (40), and detects and outputs temperature and humidity near a surface of the recording medium (P); a calculation unit (203) which calculates temperature and moisture content of the recording medium (P) from the temperature and humidity output values output from the temperature/humidity sensor unit (41), and calculates curl correction efficiency of the curl correction device (40) from the temperature and moisture content of the recording medium (P); a control value determination unit (204) which determines a control value to perform a curl correction in the curl correction device (40), based on the curl correction efficiency calculated by the calculation unit (203); and a control unit (206) which controls the curl correction device (40) by the control value.
Bibliography:Application Number: EP20130153103