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US 2011/0211889 A1Published application
Printing apparatus and sheet processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasato Izumi, Tetsuhiro Nitta, Ryosuke Sato, Kenji Shigeno
Life of this patent
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Abstract
A decurling unit regulates a decurling force so as to be smaller when a sheet is returned from a printing unit to a sheet feeding unit than when the sheet is fed from the sheet feeding unit to the printing unit.
Claims8
An apparatus comprising:
- a sheet feeding unit configured to feed a sheet;
- a decurling unit configured to exert a decurling force on the sheet fed from the sheet feeding unit so as to reduce a curl of the fed sheet;
- and
- a printing unit configured to perform printing on the sheet passed through the decurling unit,
- wherein the decurling force is regulated so as to be smaller when the sheet is returned from the printing unit to the sheet feeding unit than when the sheet is fed from the sheet feeding unit to the printing unit.
2 more elements
An apparatus comprising:
- a sheet feeding unit configured to feed a sheet;
- a decurling unit configured to exert a decurling force on the sheet fed from the sheet feeding unit so as to reduce a curl of the fed sheet;
- and
- a processing unit configured to perform a predetermined processing on the sheet passed through the decurling unit,
- wherein the decurling force is regulated so as to be smaller when the sheet is returned from the processing unit to the sheet feeding unit than when the sheet is fed from the sheet feeding unit to the processing unit.
2 more elements
Dependencies are inferred from the claim text.