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US 8,559,843 B2Granted
Image forming device and cartridge configuration
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMasahiro Ishii, Fumio Morita
Life of this patent
Estimating the term…
Abstract
A developer cartridge according to one aspect of the invention is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side; a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction; a contact terminal located at the second side of the developing frame; and a memory electrically connected to the contact terminal, wherein the first side is downstream in the first direction from the second side.
Claims33
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including;
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the first side is downstream in the first direction from the second side, and
- wherein each of the pressing members includes a spring.
8 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the first side is downstream in the first direction from the second side, and
- wherein one of the pressing members lacks a main body terminal.
8 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the first side is downstream in the first direction from the second side, and
- wherein pressing forces supplied by the pressing members are symmetric with respect to a center position in an axis direction of the developing roller.
8 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the first side is downstream in the first direction from the second side, and
- wherein the pressing members are symmetric with respect to a center position in an axis direction of the developing roller.
8 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the developing cartridge is configured to be inserted into the main body in a first direction,
- wherein the first side is downstream in the first direction from the second side,
- wherein the contact terminal includes a plane of contact,
- wherein the plane of contact of the contact terminal is perpendicular to the first direction, and
- wherein each pressing member includes a spring.
11 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the developing cartridge is configured to be inserted into the main body in a first direction,
- wherein the first side is downstream in the first direction from the second side,
- wherein the contact terminal includes a plane of contact,
- wherein the plane of contact of the contact terminal is perpendicular to the first direction, and
- wherein one of the pressing members lacks a main body terminal.
11 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the developing cartridge is configured to be inserted into the main body in a first direction,
- wherein the first side is downstream in the first direction from the second side, and
- wherein pressing forces supplied by the pressing members are symmetric with respect to a center position in an axis direction of the developing roller.
9 more elements
An image forming device comprising:
- a main body;
- a cover connected to the body, the cover including pressing members in which at least one of the pressing members includes at least one main-body terminal connected to an electric circuit;
- a photosensitive drum supported by the main body;
- a developing cartridge including:
- a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side;
- a developing roller located at the first side of the developing frame;
- a contact terminal located at the second side of the developing frame;
- and
- a memory electrically connected to the contact terminal,
- wherein the developing cartridge is configured to be inserted into the main body in a first direction,
- wherein the first side is downstream in the first direction from the second side,
- wherein the contact terminal includes a plane of contact,
- wherein the plane of contact of the contact terminal is perpendicular to the first direction, and
- wherein pressing members are symmetric with respect to a center position in an axis direction of the developing roller.
11 more elements
Dependencies are inferred from the claim text.