US4707706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal color recording apparatus
Assignee: Sharp Corp
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Filing: 1986-09-18
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Granted: 1987-11-17
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Expires: 2006-09-18
Abstract
Abstract A thermal recording apparatus including a thermal head provided with a plurality of heating elements each having a predetermined value of resolution in a feed direction of a recording paper sheet, and a printer control circuit having first and second feed control members for feeding, at the time of recording scanning of each line of the recording paper sheet, the recording paper sheet through an interval of a half of the predetermined value and an interval of the predetermined value multiplied by a natural number, respectively such that feed of the recording paper sheet is controlled by the first and second feed control members at the time of recording of hues of yellow, magenta and cyan and a hue of black, respectively.
Inventors
- 👤 Fumikazu Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/50; H04N1/506; H04N1/508; H04N1/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
247 words
In a thermal recording apparatus including a thermal head including a plurality of heating elements, and means for feeding a recording paper sheet in a direction at right angles to a recording line of said thermal head, wherein recording on the recording paper sheet is sequentially performed upon recording scanning of the recording paper sheet in a direction of the recording line by said thermal head and feed of the recording paper sheet by said means, the improvement comprising: said heating elements each having a predetermined value of resolution in a feed direction of the recording paper sheet; a printer control circuit including, first feed control means for controlling feed of the recording paper sheet so as to feed the recording paper sheet through an interval of a half of the predetermined value at the time of recording scanning of each line of the recording paper sheet by said thermal head, second feed control means for controlling feed of the recording paper sheet so as to feed the recording paper sheet through an interval of the predetermined value multiplied by a natural number at the time of recording scanning of each line of the recording paper sheet by said thermal head; wherein feed of the recording paper sheet is controlled by said first feed control means at the time of recording of hues of yellow, magenta and cyan and is controlled by said second feed control means at the time of recording of a hue of black.
Claim 2
Dependent Claim
247 words
In a thermal recording apparatus including a thermal head including a plurality of heating elements, and means for feeding a recording paper sheet in a direction at right angles to a recording line of said thermal head, wherein recording on the recording paper sheet is sequentially performed upon recording scanning of the recording paper sheet in a direction of the recording line by said thermal head and feed of the recording paper sheet by said means, the improvement comprising: said heating elements each having a predetermined value of resolution in a feed direction of the recording paper sheet; a printer control circuit including, first feed control means for controlling feed of the recording paper sheet so as to feed the recording paper sheet through an interval of a half of the predetermined value at the time of recording scanning of each line of the recording paper sheet by said thermal head, second feed control means for controlling feed of the recording paper sheet so as to feed the recording paper sheet through an interval of the predetermined value multiplied by a natural number at the time of recording scanning of each line of the recording paper sheet by said thermal head; wherein feed of the recording paper sheet is controlled by said first feed control means at the time of recording of hues of yellow, magenta and cyan and is controlled by said second feed control means at the time of recording of a hue of black.
Claim 3
Dependent Claim
17 words
A thermal recording apparatus as claimed in claim 1, wherein the natural number is set at 1.
Claim 4
Dependent Claim
18 words
A thermal recording apparatus as claimed in claim 1, wherein the predetermined value is set at 1/12 mm.
Claim 5
Dependent Claim
18 words
A thermal recording apparatus as claimed in claim 2, wherein the predetermined value is set at 1/12 mm.
References Cited (Backward Citations)
US4536772A
Cited
US4586834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |