JPS5514248A - Heat-sensitive recording method - Google Patents
Heat-sensitive recording methodInfo
- Publication number
- JPS5514248A JPS5514248A JP8677278A JP8677278A JPS5514248A JP S5514248 A JPS5514248 A JP S5514248A JP 8677278 A JP8677278 A JP 8677278A JP 8677278 A JP8677278 A JP 8677278A JP S5514248 A JPS5514248 A JP S5514248A
- Authority
- JP
- Japan
- Prior art keywords
- thermal head
- recording
- heat
- period
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/23—Reproducing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
- B41J2/36—Print density control
- B41J2/37—Print density control by compensation for variation in current
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/028—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by thermal printers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
- H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Fax Reproducing Arrangements (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To provide a heat-sensitive recording method suitable for use in facsimile capable of performing a high-speed and less expensive recording by making uye of a pulse current, which is obtained by full-wave retification of a commercial A.C. electric current, as the power for the thermal head and the holding of the recording signal is made for each pulse after the detection of the holding voltage. CONSTITUTION:An A.C. commercial power is transformed to a voltage suitable for use in a thermal head 12, by means of a power circuit 26, and is full-wave rectified by diodes 23, 24. The resulted pulse wave is applied to the source terminal 2 of the thermal head 2. When the control circuit detects the cease of the period Ts and commencement of a period Tv from the signal from a voltage detecting circuit 27, an image signal 11 and a clock are applied to this circuit to trigger the thyristor of the thermal head. This operation is stopped as the image signal 11 corresponding to the dots of a required number is held. A heat generating resistance element goes on to generate heat until the next period Ts to complete the recording.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8677278A JPS5514248A (en) | 1978-07-18 | 1978-07-18 | Heat-sensitive recording method |
DE2928304A DE2928304C2 (en) | 1978-07-18 | 1979-07-13 | Control circuit for maintaining constant color intensity in a thermal recording apparatus |
US06/057,976 US4268838A (en) | 1978-07-18 | 1979-07-16 | Thermal recording system |
NL7905572A NL7905572A (en) | 1978-07-18 | 1979-07-17 | THERMAL REGISTRATION SYSTEM. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8677278A JPS5514248A (en) | 1978-07-18 | 1978-07-18 | Heat-sensitive recording method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5514248A true JPS5514248A (en) | 1980-01-31 |
Family
ID=13896033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8677278A Pending JPS5514248A (en) | 1978-07-18 | 1978-07-18 | Heat-sensitive recording method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5514248A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5210584A (en) * | 1975-03-11 | 1977-01-26 | Sanwa Dengiyou Kk | Twisted power cable having no center space |
JPS52105840A (en) * | 1976-03-02 | 1977-09-05 | Oki Electric Ind Co Ltd | Thermal head |
JPS5357844A (en) * | 1976-11-05 | 1978-05-25 | Toshiba Corp | Drive device for heat-sensitive head |
JPS5360239A (en) * | 1976-11-11 | 1978-05-30 | Toshiba Corp | Drive device for thermal head |
-
1978
- 1978-07-18 JP JP8677278A patent/JPS5514248A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5210584A (en) * | 1975-03-11 | 1977-01-26 | Sanwa Dengiyou Kk | Twisted power cable having no center space |
JPS52105840A (en) * | 1976-03-02 | 1977-09-05 | Oki Electric Ind Co Ltd | Thermal head |
JPS5357844A (en) * | 1976-11-05 | 1978-05-25 | Toshiba Corp | Drive device for heat-sensitive head |
JPS5360239A (en) * | 1976-11-11 | 1978-05-30 | Toshiba Corp | Drive device for thermal head |
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