A process cartridge includes a developing cartridge, drum cartridge, and end member. The developing cartridge and drum cartridge include first and second driving force receiving units, respectively. The second receiving unit is disposed on the same side on which the first receiving unit in an axis direction of photosensitive drum. A developing frame is movable within a prescribed distance in the axis direction relative to a photosensitive drum frame. The photosensitive drum is movable in the axis direction relative to the drum frame within a predetermined distance. The end member includes a drum contact surface, developing frame contact surface, and external member contact surface. When the first and second receiving units are in a predetermined state, a photosensitive drum contacts to the drum contact surface, the developing frame contacts to the developing frame contact surface, the external member contact surface contacts to an external member.

Claims

14 · 2 independent · depth 4

14 granted claims

›1.independentA process cartridge comprising:na developing cartridge including:a developer carrying member defining an axis extending in a first axis direction and …+10

A process cartridge comprising:na developing cartridge including:a developer carrying member defining an axis extending in a first axis direction and configured to rotate around the axis;a developing frame configured to accommodate the developer carrying member therein and having a first side portion and a second side portion that is opposite to the first side portion in the first axis direction; anda first receiving unit disposed on the first side portion and capable of receiving a first driving force for rotating the developer carrying member when the first receiving unit is in a predetermined state; anda drum cartridge including:a drum frame to which the developing frame is mounted such that the developing frame is movable within a prescribed range of distance in the first axis direction relative to the drum frame;a photosensitive drum extending in a second axis direction parallel to the first axis direction and configured to rotate relative to the drum frame, the photosensitive drum is movable in the second axis direction relative to the drum frame within a predetermined range of distance, the photosensitive drum having a first end portion and a second end portion opposite to the first end portion in the second axis direction, the first end portion being closer to the first side portion than to the second side portion, the second end portion being closer to the second side portion than to the first side portion; anda second receiving unit disposed on the first end portion and capable of receiving a second driving force for rotating the photosensitive drum when the second receiving unit is in a predetermined state; andan end member including:a drum contact surface to which the second end portion of the photosensitive drum contacts when both the first receiving unit and the second receiving unit are in the predetermined state;a developing frame contact surface to which the second side portion of the developing frame contacts when both the first receiving unit and the second receiving unit are in the predetermined state;a drum supporting portion configured to rotatably support the photosensitive drum;a developer-carrying-member supporting portion configured to support the developer carrying member when the developing frame is mounted on the drum frame; andan external member contact surface configured to contact with an external member when both the first receiving unit and the second receiving unit are in the predetermined state, the external member contact surface being disposed farther from the second end portion of the photosensitive drum in the second axis direction than the developing frame contact surface is;wherein the end member is provided integrally with the drum contact surface, the developing frame contact surface, and the external member contact surface.

›2.↳ 1The process cartridge according to claim 1, wherein the drum cartridge further includes a drum gear disposed on the first end portion of the photosens…d2+2

›5.↳ 1The process cartridge according to claim 1, wherein the drum frame includes a guiding portion that is disposed closer to the first end portion of the …d2+2

›8.↳ 1The process cartridge according to claim 1, wherein the developing cartridge further includes:na first covering member configured to cover at least pa…d2

›9.↳ 1The process cartridge according to claim 1, wherein the photosensitive drum includes:nan element tube extending in the second axis direction and havin…d2+2

›12.independentA process cartridge comprising:na developing unit including:a developer carrying member defining an axis extending in a first axis direction and confi…+2

Classifications

1 codes

IPC · International Patent Classification

Section G — Physics

G03G21/18

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Pendency

2.9 y

1,041 days filing → grant

Office actions

non-final + final

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no RCE

Examiner

Carla Therrien

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Citations: 22 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20130051848 A1	28 Feb 2013

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