Patent EP0159703A2 successfully refreshed from Google Patents.
EP0159703A2
Expired / Lapsed
EP
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Thermal transfer recording apparatus
Assignee: Hitachi Ltd
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Filing: 1985-04-24
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Granted: —
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Expires: 2005-04-24
Abstract
Abstract A recording apparatus of thermal transfer type includes a thermal head (5) having a plurality of linearly-arrayed heat generating elements selectively generating heat in response to the application of a character and pattern information signal providing the thermal transfer energy, and a carrier (1) having a coating of a thermally transferable recording material. A recording medium (7) recording character and pattern information is disposed between the carrier (1) and a platen roller (6) to be transported by the platen roller. At the time of recording character and pattern information on the recording medium (7), the thermal transfer energy is applied to the heat generating elements corresponding to the character and pattern information signal while pressing the thermal head against the platen roller. During the recording, the thermal transfer energy is controlled to correspond to the required density tone of the character and pattern information to be recorded.
Inventors
- 👤 Jyunichi Matsuno
- 👤 Masataka Kawauchi
- 👤 Masashi Yoshida
- 👤 Satoshi Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 18:38
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; H; H04; H04N; H04N1/00; H04N1/04; H04N1/047; H04N1/0473; H04N1/40; H04N1/40025; H04N1/40031; H04N1/46; H04N1/50; H04N1/506; H04N1/508; H04N1/12; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N2201/00; H04N2201/04; H04N2201/047; H04N2201/04701; H04N2201/0471; H04N2201/04715; H04N2201/04724; H04N2201/04725; H04N2201/04734
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
169 words
A recording apparatus of thermal transfer type including a thermal head (5) having a plurality of linearly-arrayed heat generating elements selectively generating heat in response to the application of a character and pattern information signal providing the thermal transfer energy, a carrier (1) having a coating of a thermally transferable recording material, and a platen roller (6) disposed opposite to said thermal head, so as to record character and pattern information on a recording medium (7) while controlling the thermal transfer energy thereby controlling the density tone, said apparatus comprising a drive source (11) for continuously driving said platen roller (6), rotation detecting means (12, 13, 14) for detecting at least rotation speed of said platen roller, and density tone control means (15, 17, 18, 19) for controlling the thermal transfer energy applied to said thermal head (5) so that the thermal transfer energy corresponding to the required density computed on the basis of the detected rotation speed of said platen roller can be applied to said thermal head.
Claim 2
Dependent Claim
169 words
A recording apparatus of thermal transfer type including a thermal head (5) having a plurality of linearly-arrayed heat generating elements selectively generating heat in response to the application of a character and pattern information signal providing the thermal transfer energy, a carrier (1) having a coating of a thermally transferable recording material, and a platen roller (6) disposed opposite to said thermal head, so as to record character and pattern information on a recording medium (7) while controlling the thermal transfer energy thereby controlling the density tone, said apparatus comprising a drive source (11) for continuously driving said platen roller (6), rotation detecting means (12, 13, 14) for detecting at least rotation speed of said platen roller, and density tone control means (15, 17, 18, 19) for controlling the thermal transfer energy applied to said thermal head (5) so that the thermal transfer energy corresponding to the required density computed on the basis of the detected rotation speed of said platen roller can be applied to said thermal head.
Claim 3
Dependent Claim
63 words
A recording apparatus as claimed in Claim 1, wherein said carrier (1) is wound at one end portion thereof around supply means (3) and is passed between said thermal head (5) and said platen roller (6) to be wound at the other end portion thereof around take-up means (4), and tension imparting means is connected between said supply means and said take-up means.
Claim 4
Dependent Claim
30 words
A recording apparatus as claimed in Claim 1, wherein a plurality of kinds of color recording materials are successively arranged in a plurality of different regions on said carrier (1).
Claim 5
Dependent Claim
28 words
A recording apparatus as claimed in Claim 1, 2 or 3, wherein said recording material (materials) is a heat-fusible one tending to be fused by application of heat.
Claim 6
Dependent Claim
27 words
A recording apparatus as claimed in Claim 1, 2 or 3, wherein said recording material (materials) is a sublimable one tending to sublimate by application of heat.
Claim 7
Dependent Claim
21 words
A recording apparatus as claimed in Claim 1, wherein said platen roller (6) is continuously driven by a DC motor (11).
Claim 8
Dependent Claim
64 words
A recording apparatus as claimed in Claim 1 or 6, wherein said platen roller (6) has a chuck portion (6a) at a part of its outer periphery to disengageably engage the leading end of a recording medium (7), and the recording medium engaged at its leading end by said chuck portion is wound around and held on the outer periphery of said platen roller.
Claim 9
Dependent Claim
28 words
A recording apparatus as claimed in Claim 1, wherein said rotation detecting means includes a pulse encoder (12) coupled to said drive source (11) driving said platen roller.
Claim 10
Dependent Claim
27 words
A recording apparatus as claimed in Claim 1, wherein said rotation detecting means includes a frequency generator coupled to said drive source (11) driving said platen roller.
Claim 11
Dependent Claim
132 words
A recording apparatus as claimed in Claim 1, wherein said density tone control means includes computing means (19) for computing the thermal transfer energy corresponding to the required density on the basis of the detected rotation speed of said platen roller (6), character and pattern information storage means (17) for storing the results of computation by said computing means as character and pattern information, signal processing means (18) for processing the character and pattern information stored in said character and pattern information storage means as a character and pattern information signal, and signal output means (15) for applying the character and pattern information signal from said signal processing means to said thermal head (5) as the thermal transfer energy corresponding to the tone of the character and pattern information to be recorded.
Claim 12
Dependent Claim
78 words
ll. A recording apparatus as claimed in Claim 10, wherein said rotation detecting means detects an angular position in rotation of said platen roller (6), as well as the rotation speed thereof, and a signal indicative of said rotation speed is applied to speed control means (16) provided for controlling the speed of said platen-roller drive source (11) to a predetermined speed, and a signal indicative of said angular position is applied to said signal output means (15).
Claim 13
Dependent Claim
62 words
A recording apparatus as claimed in Claim 10, wherein said rotation detecting means detects an angular position in rotation of said platen roller, as well as the rotation speed thereof and a signal indicative of said rotation speed is applied to said signal processing means (18), and a signal indicative of said angular position is applied to said signal output means (15).
References Cited (Backward Citations)
No citation records indexed.
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