US5321530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image formation system employing optical memory
Assignee: Sharp Corp
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Filing: 1992-04-23
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Granted: 1994-06-14
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Expires: 2012-04-23
Abstract
Abstract An image formation system includes one or more image data output device for outputting images composed of three primary colors for full color imaging, and imaging system including a printer where beam light is used to selectively transfer image data from any of the image data output device in an optical image memory, a connecting device for selectively connecting more than two of the image data output device to the printer, a detecting device for detecting whether each of the image data output device is connected to the printer, an erasing device for erasing images remnant in the optical image memory, and a control device for receiving output from the detecting device to operate the erasing device at each end of a period for which each data output device has been connected to the printer.
Inventors
- 👤 Seiji Kawaji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:13
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/50; H04N1/506; H04N1/508; B; B41; B41J; B41J2/00; B41J2/435; B41J2/47; B41J2/471
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
215 words
An image formation system comprising: a plurality of image data output means for outputting data composed of three primary color image data for full color imaging, reserve command data and release command data, and an image formation means operatively connected with the plurality of image data output means, the image formation means comprising, printing means for writing the image from each of the image data output means in an optical image memory to print the image data on a medium; reserve command recognizing means for recognizing the reserve command data from the image data output means; release command recognizing means for recognizing the release command data from the image data output means; control means for allowing one of the image data output means to exclusively use the printing means for writing the image data in the optical memory and printing the image data on the medium when the reserve command data from the image data output means is recognized by the reserve command recognizing means and to release the exclusive use when the release command data from the image data output means is recognized by the release command recognizing means; and erasing means for erasing images remaining in the optical image memory when the release command data is recognized by the release command recognizing means.
Claim 2
Dependent Claim
215 words
An image formation system comprising: a plurality of image data output means for outputting data composed of three primary color image data for full color imaging, reserve command data and release command data, and an image formation means operatively connected with the plurality of image data output means, the image formation means comprising, printing means for writing the image from each of the image data output means in an optical image memory to print the image data on a medium; reserve command recognizing means for recognizing the reserve command data from the image data output means; release command recognizing means for recognizing the release command data from the image data output means; control means for allowing one of the image data output means to exclusively use the printing means for writing the image data in the optical memory and printing the image data on the medium when the reserve command data from the image data output means is recognized by the reserve command recognizing means and to release the exclusive use when the release command data from the image data output means is recognized by the release command recognizing means; and erasing means for erasing images remaining in the optical image memory when the release command data is recognized by the release command recognizing means.
Claim 3
Dependent Claim
15 words
A system according to claim 1, the image data output means is a host computer.
Claim 4
Dependent Claim
23 words
A system according to claim 1, wherein the optical image memory includes liquid crystal cells on which laser light writes the image data.
Claim 5
Dependent Claim
27 words
A system according to claim 3, wherein the erasing means comprises means for applying a specified voltage to the liquid crystal cells to erase the remaining images.
Claim 6
Dependent Claim
28 words
A system according to claim 3, wherein the printing means comprises means for irradiating the liquid crystal cells with light to print the image data on the medium.
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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) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |