EP0329145A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for driving image bearing member
Assignee: Canon Inc
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Filing: 1989-02-16
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Granted: —
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Expires: 2009-02-16
Abstract
Abstract This invention relates to a driving mechanism for driving an electrophotographic photosensitive body (1) operated through a torque limiter. The torque limiter (17-20) is arranged on a support shaft (16) for supporting the photosensitive body, thereby making the mechanism compact; and a driving gear (17) for driving process means is arranged coaxially with the torque limiter independently of the latter, thereby reducing the load applied to the torque limiter, thus improving the ability of the torque limiter.
Inventors
- 👤 Hiroyoshi Maruyama
- 👤 Kazuo Kagiura
- 👤 Tatsuya Shiratori
- 👤 Naomasa Kimura
- 👤 Eiichi Ando
- 👤 Masanari Shirai
- 👤 Yoshikuni Toyama
- 👤 Masashi Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 00:49
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/757
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
67 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an image bearing member; a driving source for drivingly rotating said support shaft; a torque limiter mechanism driven by rotation of said support shaft; and said image bearing member receiving a rotatable output portion of said torque limiter in the vicinity of said support shaft.
Claim 2
Dependent Claim
67 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an image bearing member; a driving source for drivingly rotating said support shaft; a torque limiter mechanism driven by rotation of said support shaft; and said image bearing member receiving a rotatable output portion of said torque limiter in the vicinity of said support shaft.
Claim 3
Dependent Claim
33 words
A driving mechanism according to claim 1, wherein said image bearing member comprises an electrophotographic photosensitive drum, and a flange of said photosensitive drum receives said rotatable output portion of said torque limiter.
Claim 4
Dependent Claim
22 words
A driving mechanism according to claim 2, wherein said flange includes a gear integrally formed thereto and said gear drives process means.
Claim 5
Dependent Claim
29 words
A driving mechanism according to claim 3, wherein said process means comprises a cleaning device and a toner conveying member of said cleaning device is driven by said gear.
Claim 6
Dependent Claim
93 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an electrophotographic photosensitive body as an image bearing member; a torque limiter mechanism provided between a driving source and a photosensitive drum constituting said photosensitive body and coaxially with said support shaft, for transmitting a rotational force from said driving source to said photosensitive drum; and said photosensitive body including a driving force receiving portion for receiving an output of said torque limiter mechanism in the vicinity of said support shaft.
Claim 7
Dependent Claim
93 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an electrophotographic photosensitive body as an image bearing member; a torque limiter mechanism provided between a driving source and a photosensitive drum constituting said photosensitive body and coaxially with said support shaft, for transmitting a rotational force from said driving source to said photosensitive drum; and said photosensitive body including a driving force receiving portion for receiving an output of said torque limiter mechanism in the vicinity of said support shaft.
Claim 8
Dependent Claim
24 words
A driving mechanism according to claim 5, wherein said driving force receiving portion comprises a flange of said photosensitive drum as said photosensitive body.
Claim 9
Dependent Claim
22 words
A driving mechanism according to claim 6, wherein said flange includes a gear integrally formed thereto and said gear drives process means.
Claim 10
Dependent Claim
29 words
A driving mechanism according to claim 7, wherein said process means comprises a cleaning device and a toner conveying member of said cleaning device is driven by said gear.
Claim 11
Dependent Claim
91 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an electrophotographic photosensitive body as an image bearing member; a driving source for drivingly rotating said support shaft; a first gear driven together with the rotation of said support shaft; a torque limiter mechanism driven together with the rotation of said support shaft; and said photosensitive body including a driving force receiving portion for receiving an output of said torque limiter mechanism in the vicinity of said support shaft.
Claim 12
Dependent Claim
91 words
A driving mechanism for driving an image bearing member used with an image forming apparatus, comprising: a support shaft for rotatably supporting an electrophotographic photosensitive body as an image bearing member; a driving source for drivingly rotating said support shaft; a first gear driven together with the rotation of said support shaft; a torque limiter mechanism driven together with the rotation of said support shaft; and said photosensitive body including a driving force receiving portion for receiving an output of said torque limiter mechanism in the vicinity of said support shaft.
Claim 13
Dependent Claim
24 words
A driving mechanism according to claim 9, wherein said driving force receiving portion comprises a flange of said photosensitive drum as said photosensitive body.
Claim 14
Dependent Claim
26 words
A driving mechanism according to claim 10, wherein said flange includes a second gear integrally formed thereto, and said first and second gears drive process means.
Claim 15
Dependent Claim
23 words
A driving mechanism according to claim 11, wherein said second gear drives a cleaning device and said first gear drives a developing device.
Claim 16
Dependent Claim
27 words
A driving mechanism according to claim 12, wherein said cleaning device a toner conveying member is driven and in said developing device a developing sleeve is driven.
Claim 17
Dependent Claim
17 words
A driving mechanism according to claim 9, wherein said electrophotographic photosensitive body comprises a belt-shaped photosensitive body.
References Cited (Backward Citations)
No citation records indexed.
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