Patent US4494861A successfully refreshed from Google Patents.
US4494861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus
Assignee: Canon Inc
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Filing: 1980-12-10
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Granted: 1985-01-22
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Expires: 2000-12-10
Abstract
Abstract A copying apparatus has an input unit for entering plural copy mode data into the copying apparatus, a memory for storing the data, and a control circuit for reading out copy mode signals in succession according to the data stored in the memory. The control circuit reads out the copy mode signals upon completion of copying on a predetermined number of copying sheets, and then controls a subsequent copying operation in accordance with the copy mode signals.
Inventors
- 👤 Tetsuji Tachika
- 👤 Hisashi Sakamaki
- 👤 Hiroyuki Hattori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/01; G03G21/00; G03G21/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
206 words
A copying system having a copying apparatus comprising: means for setting numeric data for a copying operation; storage means for storing first and second numeric data for a plurality of copying operations, wherein each copying operation comprises the formation of a plurality of complete copies set by said setting means; first manual switch means for enabling second numeric data to be set in said storage means by said setting means without affecting the numeric data already stored in said storage means; second manual switch means for causing the second numeric data to be read out from said storage means after completion of the copying operation according to the first numeric data stored in said storage means; and control means for causing said copying apparatus to carry out the first copying operation to obtain a first plurality of copies in accordance with the first numeric data and the second copying operation to obtain a second plurality of copies in accordance with the second numeric data read out from said storage means by operation of said second manual switch means, wherein during the time that the copying operation according to the first numeric data is being carried out, the second numeric data is retained in said storage means.
Claim 2
Dependent Claim
206 words
A copying system having a copying apparatus comprising: means for setting numeric data for a copying operation; storage means for storing first and second numeric data for a plurality of copying operations, wherein each copying operation comprises the formation of a plurality of complete copies set by said setting means; first manual switch means for enabling second numeric data to be set in said storage means by said setting means without affecting the numeric data already stored in said storage means; second manual switch means for causing the second numeric data to be read out from said storage means after completion of the copying operation according to the first numeric data stored in said storage means; and control means for causing said copying apparatus to carry out the first copying operation to obtain a first plurality of copies in accordance with the first numeric data and the second copying operation to obtain a second plurality of copies in accordance with the second numeric data read out from said storage means by operation of said second manual switch means, wherein during the time that the copying operation according to the first numeric data is being carried out, the second numeric data is retained in said storage means.
Claim 3
Dependent Claim
35 words
A copying system according to claim 1, further comprising means for displaying the numeric data in connection with the copying operation currently being performed and the numeric data in connection with the next copying operation.
Claim 4
Dependent Claim
22 words
A copying system according to claim 1, further comprising means for instructing initiation of the copying operation according to the numeric data.
Claim 5
Dependent Claim
21 words
A copying system according to claim 1 further comprising means for displaying the numeric data read out from said storage means.
Claim 6
Dependent Claim
19 words
A copying system according to claim 1 wherein said first switch means is different from said second switch means.
Claim 7
Dependent Claim
24 words
A copying system according to claim 1 wherein said first and second numeric data are entered before said copying apparatus initiates the copying operation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |