US4724462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying machine display control device
Assignee: Sharp Corp
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Filing: 1986-02-14
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Granted: 1988-02-09
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Expires: 2006-02-14
Abstract
Abstract Disclosed is a display control device of a copying machine which is provided with a plurality of displays on the operational panel and warns operators of some abnormal condition present in the copying machine by lighting up a specific alarm display which corresponds to the content of the abnormal condition through activating a specific circuit for extinguishing all other displays.
Inventors
- 👤 Kimihito Yamasaki
- 👤 Syoichiro Yoshiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:35
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/55
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A display control device for a copying machine having a plurality of alarm displays on an operation panel of the copying machine for warning operators of some abnormal condition present within the copying machine, said display control device comprising: means for illuminating an alarm display corresponding to the content of the abnormal condition present within said copying machine; and means for extinguishing all displays other than said alarm display.
Claim 2
Dependent Claim
69 words
A display control device for a copying machine having a plurality of alarm displays on an operation panel of the copying machine for warning operators of some abnormal condition present within the copying machine, said display control device comprising: means for illuminating an alarm display corresponding to the content of the abnormal condition present within said copying machine; and means for extinguishing all displays other than said alarm display.
Claim 3
Dependent Claim
42 words
The copying machine according to claim 1, further comprising, a plurality of operational modes corresponding to a plurality of functions performed by said copying machine, mode memory means for storing data to activate at least one of said plurality of operational modes.
Claim 4
Dependent Claim
39 words
The copying machine according to claim 2, wherein said mode memory means stores a plurality of signal codes each corresponding to a specific abnormal condition which may occur while one of said plurality of operational modes is in operation.
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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) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |