US4408867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical scanning unit driving device for electrophotographic reproducing apparatus
Assignee: Konica Minolta Inc
•
Filing: 1982-02-24
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Granted: 1983-10-11
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Expires: 2002-02-24
Abstract
Abstract A driving device for optical scanning unit of electrophotographic reproducing apparatus wherein a variable speed transmission of the driving mechanism of the optical scanning unit is installed on the outside of the drive mechanism mounting panel so that the desired speed ratio can be obtained by replacing the minimum amount of parts required.
Inventors
- 👤 Yozo Fujii
- 👤 Takao Shiozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:41
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525; G03B27/526
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A driving device for optical scanning unit of electrophotographic reproducing apparatus comprising: a driving source; a plurality of gear means, each driven at different speed by the driving source; a first power transmission means to transmit the driving force to the optical scanning unit; and a second power transmission means which, in synchronism with the magnifying ratio selection operation, transmits the rotation of the specified gear means of the multiple gear means to the first power transmission means; whereby the specified gear means is mounted to the member easily accessible from outside of the electrophotographic reproducing apparatus.
Claim 2
Dependent Claim
97 words
A driving device for optical scanning unit of electrophotographic reproducing apparatus comprising: a driving source; a plurality of gear means, each driven at different speed by the driving source; a first power transmission means to transmit the driving force to the optical scanning unit; and a second power transmission means which, in synchronism with the magnifying ratio selection operation, transmits the rotation of the specified gear means of the multiple gear means to the first power transmission means; whereby the specified gear means is mounted to the member easily accessible from outside of the electrophotographic reproducing apparatus.
Claim 3
Dependent Claim
15 words
A driving device as set forth in claim 1, wherein the gear means are sprockets.
References Cited (Backward Citations)
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Cited
US4348106A
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US4344696A
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US4335953A
Cited
US4315683A
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US4338022A
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US4372671A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |