JPS56130379A - Gradation recording method for thermal printing head - Google Patents

Gradation recording method for thermal printing head

Info

Publication number
JPS56130379A
JPS56130379A JP3524380A JP3524380A JPS56130379A JP S56130379 A JPS56130379 A JP S56130379A JP 3524380 A JP3524380 A JP 3524380A JP 3524380 A JP3524380 A JP 3524380A JP S56130379 A JPS56130379 A JP S56130379A
Authority
JP
Japan
Prior art keywords
fed
recording
shift registers
heat
printing head
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
Application number
JP3524380A
Other languages
Japanese (ja)
Inventor
Tatsuyuki Tomioka
Sumio Maekawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3524380A priority Critical patent/JPS56130379A/en
Publication of JPS56130379A publication Critical patent/JPS56130379A/en
Pending legal-status Critical Current

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
    • H04N1/40—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

Abstract

PURPOSE:To greatly reduce the time required for printing and conduct gradation recording at a high efficiency by a method wherein pulse-impressing time is changed in accordance with a specified mode by using a thermal printing head incorporating a driving circuit and shift registers. CONSTITUTION:The thermal printing head is used wherein a plurality of heat-generating elements 11 are provided and each of the elements 11 is correspondingly connected with the driving circuit 12 and the shift registers 13. Recording-presence signals (shaded parts in b in the figure) are fed into the shift registers 13 by picture signals fed to an input terminal 17, signals are fed to a gate terminal 19 and corresponding heat-generating elements are caused to generate heat for a length of time t1 required to obtain the density corresponding to gradation level 1. Thereafter, recording presence signals are fed into the shift registers corresponding to all the heat-generating elements relevant to the recording-presence except gradation levels 1, 2...i-1, and the operation of causing the corresponding elements to generate heat for a length of time t1 required to obtain the density corresponding to gradation level i is repeated until the maximum gradation level is reached.
JP3524380A 1980-03-19 1980-03-19 Gradation recording method for thermal printing head Pending JPS56130379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3524380A JPS56130379A (en) 1980-03-19 1980-03-19 Gradation recording method for thermal printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3524380A JPS56130379A (en) 1980-03-19 1980-03-19 Gradation recording method for thermal printing head

Publications (1)

Publication Number Publication Date
JPS56130379A true JPS56130379A (en) 1981-10-13

Family

ID=12436389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3524380A Pending JPS56130379A (en) 1980-03-19 1980-03-19 Gradation recording method for thermal printing head

Country Status (1)

Country Link
JP (1) JPS56130379A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158276A (en) * 1982-03-16 1983-09-20 Victor Co Of Japan Ltd Density controller for heat transfer type printer
US4502056A (en) * 1982-04-30 1985-02-26 Kabushiki Kaisha Sato Temperature control system
US4630068A (en) * 1985-09-30 1986-12-16 Raytheon Company High speed thermal printing circuit
JPS6256162A (en) * 1985-09-06 1987-03-11 Sharp Corp Thermal head driving circuit
US4697938A (en) * 1984-04-17 1987-10-06 Tokyo Electric Co., Ltd. Multi-tint thermal printing apparatus control system
US4806949A (en) * 1986-10-24 1989-02-21 Minolta Camera Kabushiki Kaisha Multitone thermal transfer recording method and apparatus
US4899170A (en) * 1987-12-22 1990-02-06 Eastman Kodak Company Selective energization of thermal printers
US4933686A (en) * 1988-05-02 1990-06-12 Eastman Kodak Company Method of and apparatus for transferring an image in a thermal transfer printer
US5006865A (en) * 1988-04-20 1991-04-09 Fuji Photo Film Co. Method of recording gradation image in thermal printer
US5327165A (en) * 1989-03-30 1994-07-05 Schlumberger Technology Corporation Electronic printing system for imaging thermally sensitive paper

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158276A (en) * 1982-03-16 1983-09-20 Victor Co Of Japan Ltd Density controller for heat transfer type printer
US4502056A (en) * 1982-04-30 1985-02-26 Kabushiki Kaisha Sato Temperature control system
US4697938A (en) * 1984-04-17 1987-10-06 Tokyo Electric Co., Ltd. Multi-tint thermal printing apparatus control system
JPS6256162A (en) * 1985-09-06 1987-03-11 Sharp Corp Thermal head driving circuit
JPH0544350B2 (en) * 1985-09-06 1993-07-06 Sharp Kk
US4630068A (en) * 1985-09-30 1986-12-16 Raytheon Company High speed thermal printing circuit
JPS6282054A (en) * 1985-09-30 1987-04-15 レイセオン　カンパニ− Heat-sensitive recording-head drive circuit
US4806949A (en) * 1986-10-24 1989-02-21 Minolta Camera Kabushiki Kaisha Multitone thermal transfer recording method and apparatus
US4899170A (en) * 1987-12-22 1990-02-06 Eastman Kodak Company Selective energization of thermal printers
US5006865A (en) * 1988-04-20 1991-04-09 Fuji Photo Film Co. Method of recording gradation image in thermal printer
US4933686A (en) * 1988-05-02 1990-06-12 Eastman Kodak Company Method of and apparatus for transferring an image in a thermal transfer printer
US5327165A (en) * 1989-03-30 1994-07-05 Schlumberger Technology Corporation Electronic printing system for imaging thermally sensitive paper

Similar Documents

Publication Publication Date Title
JPS5590383A (en) Thermal printer
JPS56130379A (en) Gradation recording method for thermal printing head
JPS57178881A (en) Driving of heat sensitive recording head
JPS5748868A (en) Heat sensing recorder
JPS5778272A (en) Drive method in recorder
JPS57144773A (en) High speed record driving
JPS56130378A (en) Driving method for thermal printing head
JPS5573568A (en) Method and apparatus for recording through ejection of recording medium liquid by using thermal energy
JPS6044369A (en) Driving method for thermal head in thermal recorder
JPS5757681A (en) Heat-sensitive recording device
JPS5646779A (en) Temperature control circuit for thermal head array
JPS5514711A (en) Facsimile recorder
JPS57125068A (en) Thermal recording device
JPS5757682A (en) Heat-sensitive recording device
JPS52104017A (en) Recorded picture correction method
JPS5619777A (en) Gradation recording device
JPS6487273A (en) Driving ic for thermal head
JPS601973A (en) Thermal head driving system
JPS5753369A (en) Ink jet printer
JPS5523466A (en) Heat-sensitive signal recorder
JPS5573569A (en) Method and apparatus for recording through ejection of recording medium liquid by using thermal energy
JPS5720760A (en) Electrostatic recording device
JPS56164668A (en) Recording device
JPS5692080A (en) Forming method for tonal picture in heat-sensitive printer
JPS5765081A (en) Printer