›1.independentAn image forming apparatus comprising:na process cartridge including:na casing,a photosensitive drum having an axis L1, the photosensitive drum being …+1
An image forming apparatus comprising:na process cartridge including:na casing,a photosensitive drum having an axis L1, the photosensitive drum being rotatably supported in the casing to permit rotation about the axis L1, anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the photosensitive drum, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum, andwherein a maximum angle of inclination of the axis L2 with respect to the axis L1 is about 20 degrees to about 60 degrees;a driving motor;a driving shaft engageable with the second end portion of the coupling member of the process cartridge and having a rotational axis L3;a guide portion configured to guide insertion of the process cartridge into the image forming apparatus along a mounting direction that is substantially perpendicular to the rotational axis L3 of the driving shaft; andan urging member movable between an urging position and a retracted position retracted from the urging position,wherein, when the process cartridge is mounted to the image forming apparatus, the coupling member is inclined toward the driving shaft by being urged by an elastic force of the urging member restoring to the urging position after being temporarily retracted to the retracted position by being contacted by the coupling member.
›2.↳ 1An apparatus according to claim 1, wherein a moving direction of the urging member is substantially perpendicular to the mounting direction of the pro…d2
An apparatus according to claim 1, wherein a moving direction of the urging member is substantially perpendicular to the mounting direction of the process cartridge and the rotational axis L3 of the driving shaft.
›3.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including a facing portion that faces the axis L2, each facing portion being open to the axis L2,wherein a maximum dimension, in a direction perpendicular to the axis L2, of at least a part of the connecting portion is smaller than a diameter of an imaginary circle that is tangent to the facing portions of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›4.↳ 3A drum unit according to claim 3, wherein the part of the connecting portion with the maximum dimension that is smaller than the diameter of the imagi…d2
A drum unit according to claim 3, wherein the part of the connecting portion with the maximum dimension that is smaller than the diameter of the imaginary circle is adjacent to the second end portion.
›5.↳ 3A drum unit according to claim 3, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting por…d2+3
A drum unit according to claim 3, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›6.↳ 5A drum unit according to claim 5, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis …d3+2
A drum unit according to claim 5, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›7.↳ 6A drum unit according to claim 6, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 6, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›8.↳ 7A drum unit according to claim 7, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface o…d5
A drum unit according to claim 7, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›9.↳ 3A drum unit according to claim 3, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 3, wherein the connecting portion comprises a shaft along the axis L2.
›10.↳ 3A drum unit according to claim 3, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the…d2+1
A drum unit according to claim 3, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›11.↳ 10A drum unit according to claim 10, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 10, wherein the first end portion is substantially spherical.
›12.↳ 3A drum unit according to claim 3, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 3, wherein the first end portion is substantially spherical.
›13.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including an exposed facing portion that faces toward the axis L2, wherein a maximum dimension, in a direction perpendicular to the axis L2, of at least a part of the connecting portion is smaller than a diameter of an imaginary circle that is tangent to the exposed facing portions of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›14.↳ 13A drum unit according to claim 13, wherein the part of the connecting portion with the maximum dimension that is smaller than the diameter of the imag…d2+3
A drum unit according to claim 13, wherein the part of the connecting portion with the maximum dimension that is smaller than the diameter of the imaginary circle is adjacent to the second end portion.
›16.↳ 14A drum unit according to claim 14, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis…d3+2
A drum unit according to claim 14, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›17.↳ 16A drum unit according to claim 16, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 16, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›18.↳ 17A drum unit according to claim 17, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 17, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›15.↳ 13A drum unit according to claim 13, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2
A drum unit according to claim 13, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›19.↳ 13A drum unit according to claim 13, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 13, wherein the connecting portion comprises a shaft along the axis L2.
›20.↳ 13A drum unit according to claim 13, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 13, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›21.↳ 20A drum unit according to claim 20, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 20, wherein the first end portion is substantially spherical.
›22.↳ 13A drum unit according to claim 13, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 13, wherein the first end portion is substantially spherical.
›23.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including a facing portion that faces the axis L2, each facing portion being open to the axis L2,wherein the connecting portion has a plurality of cross- sections perpendicular to the axis L2, and at least one of the cross- sections has a maximum dimension that is smaller than a diameter of an imaginary circle that is tangent to the facing portion of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›24.↳ 23A drum unit according to claim 23, wherein the at least one cross-section is adjacent to the second end portion.d2+3
A drum unit according to claim 23, wherein the at least one cross-section is adjacent to the second end portion.
›26.↳ 24A drum unit according to claim 24, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis…d3+2
A drum unit according to claim 24, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›27.↳ 26A drum unit according to claim 26, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 26, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›28.↳ 27A drum unit according to claim 27, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 27, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›25.↳ 23A drum unit according to claim 23, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2
A drum unit according to claim 23, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›29.↳ 23A drum unit according to claim 23, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 23, wherein the connecting portion comprises a shaft along the axis L2.
›30.↳ 23A drum unit according to claim 23, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 23, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›31.↳ 30A drum unit according to claim 30, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 30, wherein the first end portion is substantially spherical.
›32.↳ 23A drum unit according to claim 23, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 23, wherein the first end portion is substantially spherical.
›33.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including an exposed facing portion that faces toward the axis L2,wherein the connecting portion has a plurality of cross-sections perpendicular to the axis L2, and at least one of the cross-sections has a maximum dimension that is smaller than a diameter of an imaginary circle that is tangent to the exposed facing portion of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›34.↳ 33A drum unit according to claim 33, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 33, wherein the at least one cross-section is adjacent to the second end portion.
›35.↳ 33A drum unit according to claim 33, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 33, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›36.↳ 35A drum unit according to claim 35, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis…d3+2
A drum unit according to claim 35, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›37.↳ 36A drum unit according to claim 36, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 36, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›38.↳ 37A drum unit according to claim 37, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 37, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›39.↳ 33A drum unit according to claim 33, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 33, wherein the connecting portion comprises a shaft along the axis L2.
›40.↳ 33A drum unit according to claim 33, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 33, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›41.↳ 40A drum unit according to claim 40, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 40, wherein the first end portion is substantially spherical.
›42.↳ 33A drum unit according to claim 33, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 33, wherein the first end portion is substantially spherical.
›43.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the phot…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including a facing portion that faces the axis L2, each facing portion being open to the axis L2,wherein the connecting portion has at least one cross-section perpendicular to the axis L2, the at least one cross-section having a maximum dimension that is smaller than a diameter of an imaginary circle that is tangent to the facing portions of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›44.↳ 43A drum unit according to claim 43, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 43, wherein the at least one cross-section is adjacent to the second end portion.
›45.↳ 43A drum unit according to claim 43, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 43, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›46.↳ 45A drum unit according to claim 45, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis…d3+2
A drum unit according to claim 45, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›47.↳ 46A drum unit according to claim 46, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 46, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›48.↳ 47A drum unit according to claim 47, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 47, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›49.↳ 43A drum unit according to claim 43, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 43, wherein the connecting portion comprises a shaft along the axis L2.
›50.↳ 43A drum unit according to claim 43, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 43, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›51.↳ 50A drum unit according to claim 50, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 50, wherein the first end portion is substantially spherical.
›52.↳ 43A drum unit according to claim 43, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 43, wherein the first end portion is substantially spherical.
›53.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes at least one pair of projections, with each of the projections including an exposed facing portion that faces toward the axis L2,wherein the connecting portion has at least one cross-section perpendicular to the axis L2, the at least one cross-section having a maximum dimension that is smaller than a diameter of an imaginary circle that is tangent to the exposed facing portions of the projections, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›54.↳ 53A drum unit according to claim 53, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 53, wherein the at least one cross-section is adjacent to the second end portion.
›55.↳ 53A drum unit according to claim 53, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 53, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›56.↳ 55A drum unit according to claim 55, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis…d3+2
A drum unit according to claim 55, wherein the projections are farther than the recess from the connecting portion in a direction parallel to the axis L2.
›57.↳ 56A drum unit according to claim 56, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 56, wherein the projections are farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›58.↳ 57A drum unit according to claim 57, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 57, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›59.↳ 53A drum unit according to claim 53, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 53, wherein the connecting portion comprises a shaft along the axis L2.
›60.↳ 53A drum unit according to claim 53, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 53, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›61.↳ 60A drum unit according to claim 60, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 60, wherein the first end portion is substantially spherical.
›62.↳ 53A drum unit according to claim 53, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 53, wherein the first end portion is substantially spherical.
›63.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including a facing portion that faces the axis L2, the facing portion being open to the axis L2,wherein a maximum dimension as measured from the axis L2, in a direction perpendicular to the axis L2, of at least a part of the connecting portion is smaller than a distance between the facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›64.↳ 63A drum unit according to claim 63, wherein the part of the connecting portion with the maximum dimension that is smaller than the distance between the…d2
A drum unit according to claim 63, wherein the part of the connecting portion with the maximum dimension that is smaller than the distance between the facing portion and the axis L2 is adjacent to the second end portion.
›65.↳ 63A drum unit according to claim 63, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 63, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›66.↳ 65A drum unit according to claim 65, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L…d3+2
A drum unit according to claim 65, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›67.↳ 66A drum unit according to claim 66, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 66, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›68.↳ 67A drum unit according to claim 67, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 67, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›69.↳ 63A drum unit according to claim 63, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 63, wherein the connecting portion comprises a shaft along the axis L2.
›70.↳ 63A drum unit according to claim 63, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 63, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›71.↳ 70A drum unit according to claim 70, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 70, wherein the first end portion is substantially spherical.
›72.↳ 63A drum unit according to claim 63, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 63, wherein the first end portion is substantially spherical.
›73.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the phot…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including an exposed facing portion that faces toward the axis L2,wherein a maximum dimension as measured from the axis L2, in a direction perpendicular to the axis L2, of at least a part of the connecting portion is smaller than a distance between the exposed facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›74.↳ 73A drum unit according to claim 73, wherein the part of the connecting portion with the maximum dimension that is smaller than the distance between the…d2
A drum unit according to claim 73, wherein the part of the connecting portion with the maximum dimension that is smaller than the distance between the exposed facing portion and the axis L2 is adjacent to the second end portion.
›75.↳ 73A drum unit according to claim 73, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 73, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›76.↳ 75A drum unit according to claim 75, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L…d3+2
A drum unit according to claim 75, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›77.↳ 76A drum unit according to claim 76, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 76, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›78.↳ 77A drum unit according to claim 77, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 77, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›79.↳ 73A drum unit according to claim 73, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 73, wherein the connecting portion comprises a shaft along the axis L2.
›80.↳ 73A drum unit according to claim 73, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 73, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›81.↳ 80A drum unit according to claim 80, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 80, wherein the first end portion is substantially spherical.
›82.↳ 73A drum unit according to claim 73, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 73, wherein the first end portion is substantially spherical.
›83.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the phot…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;na flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including a facing portion that faces the axis L2, the facing portion being open to the axis L2,wherein the connecting portion has a plurality of cross-sections perpendicular to the axis L2, and at least one of the cross-sections has a maximum dimension as measured from the axis L2 that is smaller than a distance between the facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›84.↳ 83A drum unit according to claim 83, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 83, wherein the at least one cross-section is adjacent to the second end portion.
›85.↳ 83A drum unit according to claim 83, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+5
A drum unit according to claim 83, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›86.↳ 85A drum unit according to claim 85, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L…d3+4
A drum unit according to claim 85, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›87.↳ 86A drum unit according to claim 86, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+3
A drum unit according to claim 86, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›88.↳ 87A drum unit according to claim 87, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5+2
A drum unit according to claim 87, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›89.↳ 88A drum unit according to claim 88, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d6+1
A drum unit according to claim 88, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›90.↳ 89A drum unit according to claim 89, wherein the first end portion is substantially spherical.d7
A drum unit according to claim 89, wherein the first end portion is substantially spherical.
›91.↳ 83A drum unit according to claim 83, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 83, wherein the connecting portion comprises a shaft along the axis L2.
›92.↳ 83A drum unit according to claim 83, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 83, wherein the first end portion is substantially spherical.
›93.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including an exposed facing portion that faces toward the axis L2,wherein the connecting portion has a plurality of cross-sections perpendicular to the axis L2, and at least one of the cross-sections has a maximum dimension as measured from the axis L2 that is smaller than a distance between the exposed facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›94.↳ 93A drum unit according to claim 93, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 93, wherein the at least one cross-section is adjacent to the second end portion.
›95.↳ 93A drum unit according to claim 93, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting po…d2+3
A drum unit according to claim 93, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›96.↳ 95A drum unit according to claim 95, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L…d3+2
A drum unit according to claim 95, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›97.↳ 96A drum unit according to claim 96, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 96, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›98.↳ 97A drum unit according to claim 97, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface …d5
A drum unit according to claim 97, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›99.↳ 93A drum unit according to claim 93, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 93, wherein the connecting portion comprises a shaft along the axis L2.
›100.↳ 93A drum unit according to claim 93, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in th…d2+1
A drum unit according to claim 93, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›101.↳ 100A drum unit according to claim 100, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 100, wherein the first end portion is substantially spherical.
›102.↳ 93A drum unit according to claim 93, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 93, wherein the first end portion is substantially spherical.
›103.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including a facing portion that faces the axis L2, the facing portion being open to the axis L2,wherein the connecting portion has at least one cross-section perpendicular to the axis L2, the at least one cross-section having a maximum dimension as measured from the axis L2 that is smaller than a distance between the facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›104.↳ 103A drum unit according to claim 103, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 103, wherein the at least one cross-section is adjacent to the second end portion.
›105.↳ 103A drum unit according to claim 103, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting p…d2+3
A drum unit according to claim 103, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›106.↳ 105A drum unit according to claim 105, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis …d3+2
A drum unit according to claim 105, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›107.↳ 106A drum unit according to claim 106, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 106, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›108.↳ 107A drum unit according to claim 107, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface…d5
A drum unit according to claim 107, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›109.↳ 103A drum unit according to claim 103, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 103, wherein the connecting portion comprises a shaft along the axis L2.
›110.↳ 103A drum unit according to claim 103, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in t…d2+1
A drum unit according to claim 103, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›111.↳ 110A drum unit according to claim 110, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 110, wherein the first end portion is substantially spherical.
›112.↳ 103A drum unit according to claim 103, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 103, wherein the first end portion is substantially spherical.
›113.independentA drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photo…+9
A drum unit usable in a process cartridge, the drum unit comprising:na photosensitive drum having an axis L1;a flange provided at one end of the photosensitive drum that is coaxial with the axis L1; anda coupling member having an axis L2, the coupling member including (i) a first end portion connected to the flange, (ii) a second end portion, and (iii) a connecting portion connecting the first end portion and the second end portion,wherein the second end portion includes a projection, with the projection including an exposed facing portion that faces toward the axis L2,wherein the connecting portion has at least one cross-section perpendicular to the axis L2, the at least one cross-section having a maximum dimension as measured from the axis L2 that is smaller than a distance between the exposed facing portion and the axis L2, andwherein the coupling member is movable between a first position in which the axis L2 of the coupling member is coaxial with the axis L1 of the photosensitive drum, and a second position in which the axis L2 of the coupling member is inclined with respect to the axis L1 of the photosensitive drum.
›114.↳ 113A drum unit according to claim 113, wherein the at least one cross-section is adjacent to the second end portion.d2
A drum unit according to claim 113, wherein the at least one cross-section is adjacent to the second end portion.
›115.↳ 113A drum unit according to claim 113, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting p…d2+3
A drum unit according to claim 113, wherein the second end portion includes an opening to a recess, with the opening facing away from the connecting portion.
›116.↳ 115A drum unit according to claim 115, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis …d3+2
A drum unit according to claim 115, wherein the projection is farther than the recess from the connecting portion in a direction parallel to the axis L2.
›117.↳ 116A drum unit according to claim 116, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.d4+1
A drum unit according to claim 116, wherein the projection is farther than the recess from the axis L2 in a direction perpendicular to the axis L2.
›118.↳ 117A drum unit according to claim 117, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface…d5
A drum unit according to claim 117, wherein, for at least part of the second end portion, a maximum distance from the axis L2 to the outermost surface of the second end portion along a line perpendicular to the axis L2 increases as the distance along the axis L2 from the connecting portion increases.
›119.↳ 113A drum unit according to claim 113, wherein the connecting portion comprises a shaft along the axis L2.d2
A drum unit according to claim 113, wherein the connecting portion comprises a shaft along the axis L2.
›120.↳ 113A drum unit according to claim 113, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in t…d2+1
A drum unit according to claim 113, wherein the flange has a hollow portion, and at least part of the first end portion of the coupling member is in the hollow portion of the flange.
›121.↳ 120A drum unit according to claim 120, wherein the first end portion is substantially spherical.d3
A drum unit according to claim 120, wherein the first end portion is substantially spherical.
›122.↳ 113A drum unit according to claim 113, wherein the first end portion is substantially spherical.d2
A drum unit according to claim 113, wherein the first end portion is substantially spherical.
