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US 9,969,192 B2Granted
Printing apparatus and sheet winding method
AssigneeCanon Kabushiki Kaisha
InventorsYoshiaki Suzuki, Ryoya Shinjo, Tsuyoshi Mikoshiba, Masaki Komatsu, Ryo Kobayashi, Ryo Harigae
Life of this patent
Estimating the term…
Abstract
A printing apparatus includes: a printing unit configured to perform printing on a sheet; a driving unit configured to apply a rotational force to a roll member that is rotatably held; and a pressing unit having a roller configured to apply a pressing force to an outer peripheral surface of a roll sheet wound around the roll member, wherein the pressing unit changes the pressing force during a sequence in which the driving unit applies a rotational force to the roll member and a sheet that has passed through the printing unit is wound.
Claims20
A printing apparatus comprising:
- a printing unit having a print head configured to perform printing on a sheet that is continuous;
- a cutter unit configured to cut the sheet;
- a basket unit configured to receive a sheet on which an image is printed by the printing unit and which is cut by the cutter unit;
- a first driving unit configured to apply a rotational force to a first spool that holds a rolled sheet;
- a second driving unit configured to apply a rotational force to a second spool that holds a rolled sheet;
- a first pressing roller configured to apply a pressing force to an outer peripheral surface of the rolled sheet held by the first spool;
- a second pressing roller configured to apply a pressing force to an outer peripheral surface of the rolled sheet held by the second spool;
- and
- a control unit configured to control the printing apparatus,
- wherein the printing apparatus is configured to operate in (a) a first mode in which the first driving unit drives the first spool to feed out the rolled sheet on the first spool to the printing unit, the printing unit performs printing on the fed sheet, the cutter unit cuts the fed sheet and the basket unit receives the printed and cut sheet, and (b) a second mode in which the second driving unit drives the second spool to feed out the rolled sheet on the second spool to the printing unit, the printing unit performs printing on the fed sheet, the cutter unit cuts the fed sheet and the basket unit receives the printed and cut sheet, and
- wherein the control unit controls the printing apparatus such that, in the first mode and the second mode,
- during a sheet feeding operation in which a leading edge of the sheet is fed toward a printing position of the print head, one of the first and second pressing rollers presses the outer peripheral surface with a first pressing force,
- during a printing operation in which an image is printed on the fed sheet by the print head, the one of the first and second pressing rollers presses the outer peripheral surface with a second pressing force that is smaller than the first pressing force, and
- when the cutter unit cuts the sheet, the one of the first and second pressing rollers presses the outer peripheral surface with a third pressing force that is larger than the second pressing force.
11 more elements
A printing apparatus comprising:
- a mount unit configured to mount a roll sheet obtained by winding a continuous sheet into a roll shape;
- a driving unit configured to rotate the roll sheet mounted on the mount unit;
- a pressing member configured to press a surface of the roll sheet mounted on the mount unit;
- a printing unit configured to perform printing on the roll sheet supplied from the mount unit;
- a cutter unit configured to cut the roll sheet on which printing is performed by the printing unit;
- and
- a control unit which controls the printing apparatus,
- wherein the control unit controls the pressing force of the pressing member such that, when the roll sheet is fed from the mount unit toward the printing unit, the pressing member presses a surface of the roll sheet at a first pressing force, when printing is performed on a roll sheet by the printing unit, the pressing member employs a second pressing force that is smaller than the first pressing force to press a surface of the roll sheet, and when cutting of the roll sheet is performed by the cutter unit, the pressing member presses a surface of the roll sheet at a third pressing force that is larger than the second pressing force.
5 more elements
Dependencies are inferred from the claim text.