Sheet conveying apparatus and printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsToshiki Takeuchi, Koichiro Kawaguchi, Shigeru Toriihara, Kengo Nieda
Life of this patent
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Abstract
A sheet conveying apparatus coveys a sheet while nipping the sheet between a conveyance roller and a pinch roller. The pinch roller includes a first roller portion and a second roller portion adjacent to each other in a rotational axial direction thereof. The pinch roller further includes a mechanism configured to change a difference between a pressing force that the first roller portion applies to the conveyance roller and a pressing force that the second roller portion applies to the conveyance roller.
Claims11
A sheet conveying apparatus comprising:
- a conveyance roller;
- and
- a pinch roller configured to nip a sheet between the conveyance roller and the pinch roller,
- wherein the pinch roller includes a first roller portion and a second roller portion adjacent to each other in a rotational axial direction thereof, and further includes a mechanism configured to change a difference between a pressing force that the first roller portion applies to the conveyance roller and a pressing force that the second roller portion applies to the conveyance roller.
A printing apparatus comprising:
- a print head;
- a first conveying unit disposed upstream of the print head in a sheet conveyance direction during printing, the first conveying unit including a first roller pair configured to convey a sheet while nipping the sheet;
- and
- a second conveying unit disposed downstream of the print head in the sheet conveyance direction, the second conveying unit including a second roller pair configured to convey the sheet while nipping the sheet,
- wherein a conveyance force that the first roller pair conveys the sheet is greater than the conveyance force the second roller pair conveys the sheet,
- wherein the first roller pair includes:
- a conveyance roller;
- and
- a pinch roller configured to nip the sheet between the conveyance roller and the pinch roller,
- wherein the pinch roller includes a first roller portion and a second roller portion adjacent to each other in a rotational axial direction thereof, and further includes a mechanism configured to change a difference between a pressing force that the first roller portion applies to the conveyance roller and a pressing force that the second roller portion applies to the conveyance roller.
Dependencies are inferred from the claim text.