US4831412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying machine
Assignee: Sharp Corp
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Filing: 1987-01-16
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Granted: 1989-05-16
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Expires: 2007-01-16
Abstract
Abstract A copying machine for copying an original in the form of a double-spread page placed on an original stand or carriage such that the original is accurately divided when copied onto two sheets of paper. The copying machine includes a control device for controlling a copy start position of an original copy operation by a time difference determined between a reference position timing of an original scanning and a sheet feed start timing, and is operable regardless of a selected magnification.
Inventors
- 👤 Kazuyuki Ohnishi
- 👤 Masakiyo Okuda
- 👤 Yoshiteru Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:19
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/04; G03G15/041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
159 words
A copying machine for controlling a copy start position of a scanning device for a double-spread original placed on a carriage, whereby said original is copied onto two sheets of copy paper, said copying machine comprising: an original size detection device for detecting the size of the original placed on the carriage; means, responsive to said original size detection device, for determining the central point of said double-spread original; a magnification selection device for enabling the original to be copied in a plurality of magnifications; a copy start position control device for controlling the copy start position of the scanning device for each half of said double-spread original; a reference position timing setting device, operable with said copy start position control device, to maintain a reference position for beginning copying of the second half of said double-spread original regardless of the copy magnification selected, whereby both halves of said original are accurately copied onto separate sheets of copy paper.
Claim 2
Dependent Claim
159 words
A copying machine for controlling a copy start position of a scanning device for a double-spread original placed on a carriage, whereby said original is copied onto two sheets of copy paper, said copying machine comprising: an original size detection device for detecting the size of the original placed on the carriage; means, responsive to said original size detection device, for determining the central point of said double-spread original; a magnification selection device for enabling the original to be copied in a plurality of magnifications; a copy start position control device for controlling the copy start position of the scanning device for each half of said double-spread original; a reference position timing setting device, operable with said copy start position control device, to maintain a reference position for beginning copying of the second half of said double-spread original regardless of the copy magnification selected, whereby both halves of said original are accurately copied onto separate sheets of copy paper.
Claim 3
Dependent Claim
27 words
The copying machine according to claim 1, wherein said original size detection device includes a plurality of photosensors arranged along the lengthwise direction of the original carriage.
Claim 4
Dependent Claim
25 words
The copying machine according to claim 1, wherein said reference position timing setting device includes said means for determining the central point of the original.
Claim 5
Dependent Claim
80 words
The copying machine according to claim 1, wherein said copy start position control device controls the copy start position of the original by determining a time difference between a scanning of the original and a copy sheet-feed starting time for both halves of the original, wherein said reference position timing setting device enables said copy start position control device to copy the second half of the original by utilizing the central reference point determined, regardless of the copying magnification selected.
References Cited (Backward Citations)
US4129377A
Cited
US4406537A
Cited
US4461564A
Cited
DE3421255A1
Cited
US4607946A
Cited
US4595286A
Cited
DE3517086A1
Cited
US4659207A
Cited
US4615611A
Cited
DE3606881A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |