Sheet storage apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorToshiki Ishida
Life of this patent
Estimating the term…
Abstract
A sheet cassette includes a first trailing edge regulator integrally formed with a cassette frame to regulate a position of a trailing edge of a first sized sheet in a feeding direction, and a second trailing edge regulator integrally formed with the cassette frame to regulate a position of a trailing edge of a sheet of a second size stored in the cassette frame in the feeding direction. A pair of side edge regulation members regulate positions of side edges of the sheet of the first size stored in the cassette frame in the width direction at a first position and regulate positions of side edges of the sheet of the second size stored in the cassette frame in the width direction at a second position.
Claims16
A sheet cassette storing a sheet to be fed in a sheet feeding direction, the sheet cassette comprising:
- a cassette frame configured to selectively store the sheet of a first size and the sheet of a second size, a length of the sheet of the first size in the sheet feeding direction being a first value, a length of the sheet of the first size in a width direction orthogonally intersecting with the sheet feeding direction being a second value, a length of the sheet of the second size in the sheet feeding direction being a third value that is shorter than the first value, and a length of the sheet of the second size in the width direction being a fourth value that is longer than the second value;
- a liftable tray, disposed in the cassette frame, on which the sheet is placed, wherein the tray has a notch;
- a first trailing edge regulator that is integrally formed with the cassette frame and configured to regulate a trailing edge of the sheet of the first size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the first size in the sheet feeding direction;
- a second trailing edge regulator that is integrally formed with the cassette frame, disposed downstream of the first trailing edge regulator in the sheet feeding direction and outside the sheet of the first size stored in the cassette frame in the width direction, and configured to regulate a trailing edge of the sheet of the second size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the second size in the sheet feeding direction, wherein the second trailing edge regulator is arranged in the notch of the tray;
- and
- a pair of side edge regulation members that are opposite each other and disposed, in the cassette frame, downstream of the second trailing edge regulator in the sheet feeding direction, the pair of side edge regulation members being configured to be selectively detachably attached to a first position and a second position, the pair of side edge regulation members regulating side edges of the sheet of the first size stored in the cassette frame in the width direction at the first position, and the pair of side edge regulation members regulating side edges of the sheet of the second size stored in the cassette frame in the width direction at the second position.
An image forming apparatus comprising:
- a cassette frame configured to selectively store a sheet of a first size and a sheet of a second size, a length of the sheet of the first size in a sheet feeding direction being a first value, a length of the sheet of the first size in a width direction orthogonally intersecting with the sheet feeding direction being a second value, a length of the sheet of the second size in the sheet feeding direction being a third value that is shorter than the first value, and a length of the sheet of the second size in the width direction being a fourth value that is longer than the second value;
- a liftable tray, disposed in the cassette frame, on which the sheet is placed, wherein the tray has a notch;
- a first trailing edge regulator that is integrally formed with the cassette frame and configured to regulate a trailing edge of the sheet of the first size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the first size in the sheet feeding direction;
- a second trailing edge regulator that is integrally formed with the cassette frame, disposed downstream of the first trailing edge regulator in the sheet feeding direction and outside the sheet of the first size stored in the cassette frame in the width direction, and configured to regulate a trailing edge of the sheet of the second size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the second size in the sheet feeding direction, wherein the second trailing edge regulator is arranged in the notch of the tray;
- a pair of side edge regulation members that are opposite each other and disposed, in the cassette frame, downstream of the second trailing edge regulator in the sheet feeding direction, the pair of side edge regulation members being configured to be selectively detachably attached to a first position and a second position, the pair of side edge regulation members regulating side edges of the sheet of the first size stored in the cassette frame in the width direction at the first position, and the pair of side edge regulation members regulating side edges of the sheet of the second size stored in the cassette frame in the width direction at the second position;
- a sheet conveyer configured to feed the sheet stored in the cassette frame;
- and
- an image former configured to form an image on the sheet fed by the sheet conveyer from the cassette frame.
A sheet cassette storing a sheet to be fed in a sheet feeding direction, the sheet cassette comprising:
- a cassette frame configured to selectively store the sheet of a first size and the sheet of a second size, a length of the sheet of the first size in the sheet feeding direction being a first value, a length of the sheet of the first size in a width direction orthogonally intersecting with the sheet feeding direction being a second value, a length of the sheet of the second size in the sheet feeding direction being a third value that is shorter than the first value, and a length of the sheet of the second size in the width direction being a fourth value that is longer than the second value;
- a liftable tray, disposed in the cassette frame, on which the sheet is placed, wherein the tray has a notch;
- a first trailing edge regulator that is integrally formed with the cassette frame and configured to regulate a trailing edge of the sheet of the first size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the first size in the sheet feeding direction;
- a second trailing edge regulator that is integrally formed with the cassette frame, disposed downstream of the first trailing edge regulator in the sheet feeding direction and outside the sheet of the first size stored in the cassette frame in the width direction, and configured to regulate a trailing edge of the sheet of the second size on the tray in the sheet feeding direction by abutting against the trailing edge of the sheet of the second size in the sheet feeding direction, wherein the second trailing edge regulator is arranged in the notch of the tray;
- and
- a pair of side edge regulators that are opposite each other and disposed, in the cassette frame, downstream of the second trailing edge regulator in the sheet feeding direction, the pair of side edge regulators being configured to regulate side edges of the sheet on the tray in the width direction.
Dependencies are inferred from the claim text.