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US 2010/0148426 A1Published application
Printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Saito, Haruo Uchida, Kenji Shigeno, Noriyuki Aoki, Kazuhisa Kawakami, Yuji Kanome, Kosuke Yamamoto, Masakazu Tsukuda, Yoshiaki Suzuki
Life of this patent
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Abstract
Provided is a printing apparatus, including a sensor unit which optically detects, at a measurement position, a surface of a sheet, for measuring a moving state of the sheet. The sensor unit measures the moving state of the sheet when the sheet is located at the measurement position, and measures a moving state of a surface of the rotary member when the sheet is not located at the measurement position.
Claims16
A printing apparatus, comprising:
- a conveying mechanism configured to convey a sheet, the conveying mechanism comprising a rotary member;
- and
- a sensor unit configured to optically detect a measurement position on the rotary member,
- wherein the sensor unit is further configured to measure a moving state of the sheet when the sheet is located at the measurement position, and to measure a moving state of a surface of the rotary member when the sheet is not located at the measurement position.
1 more element
A conveying apparatus comprising:
- a conveying mechanism arranged to convey a sheet, the conveying mechanism comprising a rotary member;
- and
- a sensor unit arranged to optically detect a measurement position on the rotary member,
- wherein the sensor unit is configured to measure a moving state of the sheet when the sheet is located at the measurement position, and to measure a moving state of a surface of the rotary member when the sheet is not located at the measurement position.
1 more element
Dependencies are inferred from the claim text.