A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.

Claims

12 · 1 independent · depth 5

12 granted claims

›1.independentAn image forming apparatus comprising:na cartridge comprising:na developing roller;a coupling member for receiving a rotational force for rotating the…+11

›2.↳ 1An apparatus according to claim 1, wherein the coupling member is inclinable with respect to the cylindrical member so that the axis of the coupling m…d2

›3.↳ 1An apparatus according to claim 1, wherein the one end portion of the coupling member includes a projection projected along a rotational axis of the c…d2+5

›4.↳ 3An apparatus according to claim 3, wherein the coupling member is inclinable with respect to the cylindrical member so that the axis of the coupling m…d3

›5.↳ 3An apparatus according to claim 3, wherein the one end portion of the coupling member includes a spherical portion from which the projection is projec…d3+3

›9.↳ 1An apparatus according to claim 1, wherein the member supports a developing roller shaft portion of the developing roller at one longitudinal end port…d2+1

›11.↳ 1An apparatus according to claim 1, wherein the cartridge further comprises a gear, provided on an outer periphery of the cylindrical member, for trans…d2+1

Classifications

2 codes

IPC · International Patent Classification

Section G — Physics

G03G15/08
G03G21/18

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File wrapper

Pendency

2.9 y

1,068 days filing → grant

Office actions

non-final + final

Responses

3 RCE

Examiner

Rodney Bonnette

art unit 2852 · TC 2800

Law firm

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Citations: 356 back · 0 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20130279938 A1	24 Oct 2013

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