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US4879580A
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US
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Image processing apparatus
Assignee: Ricoh Co Ltd
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Filing: 1988-06-08
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Granted: 1989-11-07
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Expires: 2008-06-08
Abstract
Abstract An image processing apparatus including a photoconductive element, an optical unit and a fixing device such as a copier or a facsimile apparatus. A mechanism for driving a fixing roller and a pressing roller which constitute the fixing device is supported by members which are isolated from those members which support the optical unit and photoconductive element. Hence, oscillation developed by the driving mechanism which is associated with the fixing device is prevented from being transmitted to the photoconductive element and optical unit.
Inventors
- 👤 Tokuzo Kaneda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2064; G03G21/00; G03G21/16; G03G21/1604; G03G21/1623; G03G21/1628; G03G2221/00; G03G2221/16; G03G2221/1639; G03G2221/1651; G03G2221/1657; G03G2221/1678; G03G2221/1687
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
124 words
An image processing apparatus comprising: a photoconductive element; an optical unit for forming a latent image on said photoconductive element; a developing device for developing the latent image on said photoconductive element to produce a toner image; a transferring device for transferring the toner image from said photoconductive element to a transfer material; a fixing device constituted by a fixing roller and a pressing roller for fixing the toner which has been transferred to the transfer material; fixing device drive means for driving said fixing device; first support means for supporting said photoconductive element and said optical unit; and second support means for supporting said fixing device and said fixing device drive means, said second support means being isolated from said first support means.
Claim 2
Dependent Claim
124 words
An image processing apparatus comprising: a photoconductive element; an optical unit for forming a latent image on said photoconductive element; a developing device for developing the latent image on said photoconductive element to produce a toner image; a transferring device for transferring the toner image from said photoconductive element to a transfer material; a fixing device constituted by a fixing roller and a pressing roller for fixing the toner which has been transferred to the transfer material; fixing device drive means for driving said fixing device; first support means for supporting said photoconductive element and said optical unit; and second support means for supporting said fixing device and said fixing device drive means, said second support means being isolated from said first support means.
Claim 3
Dependent Claim
38 words
An image processing apparatus as claimed in claim 1, wherein said fixing device drive means comprises a first motor and first transmitting means for transmitting rotation of said first motor to said fixing roller and said pressing roller.
Claim 4
Dependent Claim
41 words
An image processing apparatus as claimed in claim 2, further comprising a feed roller, a guide roller and a discharge roller which are supported by said first support means for transporting the transfer material which comes out of said fixing device.
Claim 5
Dependent Claim
32 words
An image processing apparatus as claimed in claim 3, further comprising second transmitting means for transmitting rotation of said first motor to said feed roller, said guide roller and said discharge roller.
Claim 6
Dependent Claim
73 words
An image processing apparatus as claimed in claim 4, wherein said first transmitting means comprises a first belt for transmitting rotation of said first motor to said fixing roller and said pressing roller, and said second transmitting means comprises a second belt for transmitting rotation of said first motor to said feed roller, said guide roller and said discharge roller and an intermediate belt provided between said first belt and said second belt.
Claim 7
Dependent Claim
49 words
An image processing apparatus as claimed in claim 3, further comprising roller drive means for driving said feed roller, said guide roller and said discharge roller, and second transmitting means for transmitting rotation of said roller drive means to said feed roller, said guide roller and said discharge roller.
Claim 8
Dependent Claim
19 words
An image processing apparatus as claimed in claim 6, wherein said roller drive means comprises a second drive motor.
Claim 9
Dependent Claim
36 words
An image processing apparatus as claimed in claim 7, wherein said second transmitting means comprises a belt for transmitting rotation of said second drive motor to said feed roller, said guide roller and said discharge roller.
Claim 10
Dependent Claim
39 words
An image processing apparatus as claimed in claim 1, wherein said first support mans comprises side walls of an upper section of said apparatus, and said second support means comprises a framework of a lower section of said apparatus.
Claim 11
Dependent Claim
25 words
An image processing apparatus as claimed in claim 9, wherein said side walls and said framework are rotatably connected to each other by a pivot.
References Cited (Backward Citations)
US4212631A
Cited
US4362502A
Cited
US4443092A
Cited
US4589758A
Cited
US4652110A
Cited
US4671643A
Cited
US4563078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |