Cartridge
First Claim
1. A cartridge detachably mountable to a main assembly of an image forming apparatus, the cartridge comprising:
- a frame;
a rotatable member for carrying developer, the rotatable member being supported by the frame;
a blade member contacting the rotatable member;
a first seal member provided between the blade member and the frame, the first seal member extending in a rotational axis direction of the rotatable member, the first seal member being configured to seal a gap between the blade member and the frame, and the first seal member including an extending portion at a longitudinal end portion thereof, the extending portion extending in a crossing direction that crosses the rotational axis direction of the rotatable member; and
a second seal member provided between the rotatable member and the frame, the second seal member extending in the crossing direction, the second seal member contacting the rotatable member and the frame, the second seal member being configured to seal a gap between the rotatable member and the frame, and the second seal member including a first surface contacting the extending portion of the first seal member,wherein the frame includes a second surface opposite of the first surface of the second seal member across the extending portion of the first seal member in the rotational axis direction of the rotatable member, the second surface sandwiching the extending portion of the first seal member with the first surface of the second seal member in the rotational axis direction of the rotatable member.
1 Assignment
0 Petitions
Accused Products
Abstract
A cartridge includes a frame; a rotatable member for carrying a developer; a blade member contacting the rotatable member; a first seal member provided extended in a rotational axis direction of the rotatable member between the blade member and the frame so as to contact the blade member and the frame; a second seal member provided extended in a direction crossing the rotational axis direction of the rotatable member between the rotatable member and the frame so as to have a first surface contacting the first seal member; and a second surface provided on the frame and extended in a direction crossing the rotational axis direction of the rotatable member so as to contact the first seal member. The first seal member includes a portion sandwiched between the first surface and the second surface with respect to the rotational axis direction.
14 Citations
11 Claims
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1. A cartridge detachably mountable to a main assembly of an image forming apparatus, the cartridge comprising:
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a frame; a rotatable member for carrying developer, the rotatable member being supported by the frame; a blade member contacting the rotatable member; a first seal member provided between the blade member and the frame, the first seal member extending in a rotational axis direction of the rotatable member, the first seal member being configured to seal a gap between the blade member and the frame, and the first seal member including an extending portion at a longitudinal end portion thereof, the extending portion extending in a crossing direction that crosses the rotational axis direction of the rotatable member; and a second seal member provided between the rotatable member and the frame, the second seal member extending in the crossing direction, the second seal member contacting the rotatable member and the frame, the second seal member being configured to seal a gap between the rotatable member and the frame, and the second seal member including a first surface contacting the extending portion of the first seal member, wherein the frame includes a second surface opposite of the first surface of the second seal member across the extending portion of the first seal member in the rotational axis direction of the rotatable member, the second surface sandwiching the extending portion of the first seal member with the first surface of the second seal member in the rotational axis direction of the rotatable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification