Image forming apparatus and image bearing unit therefor
First Claim
1. An image forming apparatus comprising:
- an image bearing member, wherein a toner image is formed on said image bearing member and is transferred onto a recording material, thus forming an image on the recording material;
a shaft for rotating said image bearing member, wherein said shaft is provided with a first projection and a second projection, and said image bearing member is provided with a first engaging portion and a second engaging portion which are engageable with said first projection and said second projection, respectively, and wherein said first engaging portion is abuttable to said first projection at downstream and upstream sides of said first projection with respect to a rotational direction of said shaft, and said second engaging portion is abuttable to said second projection at a downstream side of said second projection, and wherein a gap is provided between said second engaging portion and said second projection at an upstream side of said second projection.
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Accused Products
Abstract
An image forming apparatus includes an image bearing member, wherein a toner image is formed on the image bearing member and is transferred onto a recording material, thus forming an image on the recording material; a shaft for rotating the image bearing member, wherein the shaft is provided with a first projection and a second projection, and the image bearing member is provided with a first engaging portion and a second engaging portion which are engageable with the first projection and the second projection, respectively, and wherein the first engaging portion is abuttable to the first projection at downstream and upstream sides of the first projection with respect to a rotational direction of the shaft, and the second engaging portion is abuttable to the second projection at a downstream side of the second projection, and wherein a gap is provided between the second engaging portion and the second projection at an upstream side of the second projection.
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Citations
25 Claims
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1. An image forming apparatus comprising:
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an image bearing member, wherein a toner image is formed on said image bearing member and is transferred onto a recording material, thus forming an image on the recording material;
a shaft for rotating said image bearing member, wherein said shaft is provided with a first projection and a second projection, and said image bearing member is provided with a first engaging portion and a second engaging portion which are engageable with said first projection and said second projection, respectively, and wherein said first engaging portion is abuttable to said first projection at downstream and upstream sides of said first projection with respect to a rotational direction of said shaft, and said second engaging portion is abuttable to said second projection at a downstream side of said second projection, and wherein a gap is provided between said second engaging portion and said second projection at an upstream side of said second projection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An image carrying unit comprising:
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an image bearing member;
a shaft for rotating said image bearing member, wherein said shaft is provided with a first projection and a second projection, and said image bearing member is provided with a first engaging portion and a second engaging portion which are engageable with said first projection and said second projection, respectively, and wherein said first engaging portion is abuttable to said first projection at downstream and upstream sides of said first projection with respect to a rotational direction of said shaft, and said second engaging portion is abuttable to said second projection at a downstream side of said second projection, and wherein a gap is provided between said second engaging portion and said second projection at an upstream side of said second projection. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification