Photosensitive member cartridge
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsYasushi Okabe, Shougo Sato, Tsutomu Suzuki
Life of this patent
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Abstract
The invention provides a photosensitive member cartridge, that has, for example, a case including a bottom wall, an upper wall, and side walls. A photosensitive drum and a transfer roller are rotatably disposed in a space surrounded by the bottom wall, the upper wall, and the side walls. The bottom wall extends below the transfer roller. A developer cartridge, having a developing roller, is set on the extending portion of the bottom wall.
Claims22
A photosensitive member cartridge disposable on a substantially flat surface, comprising:
- a case with a bottom wall;
- a photosensitive member rotatably provided in the case;
- and
- a transfer roller having a lower portion and being rotatably provided in the case, the transfer roller being disposed so as to face the photosensitive member, the bottom wall of the case substantially covering the photosensitive member and at least the lower portion of the transfer roller, an exterior of the bottom wall of the case defining a plurality of foot portions that stabilize the photosensitive member cartridge on the substantially flat surface.
A photosensitive member cartridge for use with an image forming apparatus, the image forming apparatus including a first register roller, the photosensitive member cartridge comprising:
- a case that defines a bottom;
- a photosensitive member rotatably provided in the case;
- a transfer roller being rotatably provided in the case, the transfer roller being disposed so as to face the photosensitive member;
- and
- a second register roller provided at the bottom of the case, the second register roller facing the first register roller, the second register roller being movable up and down in a substantially vertical direction relative to the photosensitive member cartridge.
A photosensitive member cartridge for use with a recording medium, comprising:
- a case having a bottom wall, the bottom wall defining an opening structured to introduce the recording medium, the bottom wall further including an extending rib;
- a photosensitive member rotatably provided in the case;
- a transfer roller being rotatably provided in the case, the transfer roller being disposed so as to face the photosensitive member;
- and
- an accommodating portion structured to hold a developer cartridge,
- wherein the extending rib and at least a portion of a bottom surface of the developer cartridge define a space structured to introduce the recording medium from the opening between the photosensitive member and the transfer roller.
A photosensitive member cartridge disposable on a substantially flat surface, comprising:
- a case with a bottom wall;
- and
- a photosensitive member rotatably provided in the case;
- wherein
- the bottom wall of the case substantially covers the photosensitive member, and an exterior of the bottom wall of the case defines a plurality of foot portions that stabilize the photosensitive member cartridge on the substantially flat surface;
- wherein the bottom wall of the case having an extending portion extending in a horizontal direction, the extending portion being capable of being detachably attached to a developer cartridge.
A photosensitive member cartridge for use with an image forming apparatus, the image forming apparatus including a first register roller, the photosensitive member cartridge comprising:
- a case that defines a bottom;
- a photosensitive member rotatably provided in the case;
- a second register roller provided at the bottom of the case, the second register roller facing the first register roller, the second register roller being movable up and down in a substantially vertical direction relative to the photosensitive member cartridge.
A developer cartridge, comprising:
- a developer case having a bottom surface, the developer case accommodating a developing agent;
- wherein the developer cartridge is attachable to and detachable from a photosensitive member cartridge, the photosensitive member cartridge including a case having a bottom defining an opening structured to introduce a recording medium, and a photosensitive member rotatably provided in the case,
- wherein the bottom wall further comprises an extending rib, the extending rib and the bottom surface defining a space structured to introduce the recording medium from the opening to the photosensitive member when the developer cartridge is attached to the photosensitive member cartridge.
Dependencies are inferred from the claim text.