US 12,130,567 B2
Developer container and image forming system including detachable cap
Hiroyuki Munetsugu, Kanagawa (JP); Mitsuhiro Sato, Tokyo (JP); and Shinjiro Toba, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 15, 2022, as Appl. No. 18/066,750.
Claims priority of application No. 2021-209054 (JP), filed on Dec. 23, 2021.
Prior Publication US 2023/0205113 A1, Jun. 29, 2023
Int. Cl. G03G 15/08 (2006.01)
CPC G03G 15/0886 (2013.01) [G03G 15/0874 (2013.01); G03G 2215/0682 (2013.01); G03G 2215/0692 (2013.01); Y10S 222/01 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A developer container configured to accommodate a developer, comprising:
a pouch including a bottom portion and a side portion extending from the bottom portion to form an opening;
a communication member configured to make inside of the pouch communicate with outside, the communication member being fixed to the opening of the pouch; and
a cap formed by injection molding and configured to be detached from the communication member by rotation with respect to the communication member, a marking indicating a direction of rotation to detach the cap from the communication member and a parting line extending in a direction along a rotation axis of the cap being disposed on an outer peripheral surface of the cap which is configured in a cylindrical shape, the marking including an arrowhead part formed to protrude from the outer peripheral surface, the arrowhead part including a rear end located upstream and a front end located downstream in the direction of rotation,
wherein a direction connecting the opening and the bottom portion of the pouch is a first direction, a longitudinal direction of a cross-sectional shape of the pouch is a second direction, the second direction being orthogonal to the first direction, and a direction orthogonal to the first direction and the second direction is a third direction,
wherein in a state of the cap attached to the communication member, the cap has a reference position on the outer peripheral surface, the reference position being a position in the second direction corresponding to where a thickness of the pouch in the third direction is maximized in a case where the pouch is viewed along the first direction, and
wherein the rear end is positioned between a first position and a second position in the direction of rotation of the cap on the outer peripheral surface of the cap when installed on the communication member, the rear end being located to overlap the parting line, the first position end being a position 45° upstream from the reference position in the direction of rotation with the rotation axis as a center of rotation, the second position being a position 45° downstream from the reference position in the direction of rotation with the rotation axis as the center of rotation.