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Patent US4629314A successfully refreshed from Google Patents.
US4629314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus having variable magnification operation memory function
Assignee: Sharp Corp
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Filing: 1985-06-06
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Granted: 1986-12-16
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Expires: 2005-06-06
Abstract
Abstract An improved copying apparatus provided with a variable magnification operation memory function, in which the data value setting operation is simplified in the case where the converted magnification copying work is repeatedly effected based on the same variable magnification operation data, and thus, working time is reduced, while generation of erroneous operation is prevented, with a reduction of running cost and an improvement of the working efficiency.
Inventors
- 👤 Shoichiro Yoshiura
- 👤 Haruyoshi Migita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:12
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/04; G03G15/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A copying apparatus having a magnification converting function, which is so arranged that a ratio in length, of a lateral side to a longitudinal side is determined for a size of a definite shape copy paper sheet, and also, for a size of a definite or indefinite shape original document to be copied, said ratio being calculated so as to specify converted magnification from said calculation obtained, for copying said definite or indefinite shape original document onto said definite shape copy paper sheet on an enlarged or contracted scale, the improvement comprising: memory means for storing variable magnification operation data of the original document size to be copied and for storing set copy paper sheet size and converted magnification; and magnification converting means for effecting a magnification conversion based on said input and stored variable magnification operation data.
Claim 2
Dependent Claim
138 words
A copying apparatus having a magnification converting function, which is so arranged that a ratio in length, of a lateral side to a longitudinal side is determined for a size of a definite shape copy paper sheet, and also, for a size of a definite or indefinite shape original document to be copied, said ratio being calculated so as to specify converted magnification from said calculation obtained, for copying said definite or indefinite shape original document onto said definite shape copy paper sheet on an enlarged or contracted scale, the improvement comprising: memory means for storing variable magnification operation data of the original document size to be copied and for storing set copy paper sheet size and converted magnification; and magnification converting means for effecting a magnification conversion based on said input and stored variable magnification operation data.
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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |