US 11,947,299 B2
Sheet storage apparatus and image forming apparatus
Toshiki Ishida, Chiba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 3, 2021, as Appl. No. 17/465,946.
Claims priority of application No. 2020-152982 (JP), filed on Sep. 11, 2020.
Prior Publication US 2022/0082976 A1, Mar. 17, 2022
Int. Cl. G03G 15/00 (2006.01)
CPC G03G 15/6502 (2013.01) [G03G 2215/00383 (2013.01)] 16 Claims
OG exemplary drawing
 
1. 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.