JPS54161947A - Heat sensitive recording system - Google Patents

Heat sensitive recording system

Info

Publication number
JPS54161947A
JPS54161947A JP7042478A JP7042478A JPS54161947A JP S54161947 A JPS54161947 A JP S54161947A JP 7042478 A JP7042478 A JP 7042478A JP 7042478 A JP7042478 A JP 7042478A JP S54161947 A JPS54161947 A JP S54161947A
Authority
JP
Japan
Prior art keywords
heating temperature
heating
gammas
heat sensitive
recording
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
JP7042478A
Other languages
Japanese (ja)
Inventor
Takashi Saito
Hiroshi Ochi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7042478A priority Critical patent/JPS54161947A/en
Publication of JPS54161947A publication Critical patent/JPS54161947A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B41J2/365—Print density control by compensation for variation in temperature
    • 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

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To make possible recording of high gradation even at the use of recording paper of high gammas by forming the respective elements of heating resistors to a required shape and forming the heating temperature distributions corresponding to the thinners and denseness of current densities. CONSTITUTION:A heating resistor 11 is formed of portions of a narrow width and wide width. The narrower the portions, the higher the current density and the higher the heating temperature by Joule heat, thus the heating temperature distributions are controlled according to the energy corresponding to the current and voltage applied to electrodes 12 and common electrode. Hence, controlling of the positions where coloring initiation temperature is reached is readily and surely accomplished even for the recording paper of high gammas and the heat sensitive recording of high resolution, high gradation and high quality may be readily accomplished in the picture element plane corresponding to the picture signals.
JP7042478A 1978-06-13 1978-06-13 Heat sensitive recording system Pending JPS54161947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7042478A JPS54161947A (en) 1978-06-13 1978-06-13 Heat sensitive recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7042478A JPS54161947A (en) 1978-06-13 1978-06-13 Heat sensitive recording system

Publications (1)

Publication Number Publication Date
JPS54161947A true JPS54161947A (en) 1979-12-22

Family

ID=13431071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7042478A Pending JPS54161947A (en) 1978-06-13 1978-06-13 Heat sensitive recording system

Country Status (1)

Country Link
JP (1) JPS54161947A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818281A (en) * 1981-07-28 1983-02-02 Ricoh Co Ltd Thermal head
DE3414936A1 (en) * 1983-04-20 1984-10-25 Canon K.K., Tokio/Tokyo Fluid jet recording head
JPS6058877A (en) * 1983-09-13 1985-04-05 Matsushita Electric Ind Co Ltd Thermal recording head
EP0157185A2 (en) * 1984-03-02 1985-10-09 Hitachi, Ltd. Thermal head
JPS6183056A (en) * 1984-10-01 1986-04-26 Nec Corp Thermal head
US4762431A (en) * 1986-04-28 1988-08-09 International Business Machines Corporation Modified thermal printing using a heated roller and with lift-off correction
JPH0281645A (en) * 1988-09-19 1990-03-22 Toshiba Corp Thermal recording head
JPH0444863A (en) * 1990-03-26 1992-02-14 Fuji Photo Film Co Ltd Thermal recording head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229229A (en) * 1975-09-01 1977-03-04 Oki Electric Ind Co Ltd Thermal printing element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229229A (en) * 1975-09-01 1977-03-04 Oki Electric Ind Co Ltd Thermal printing element

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818281A (en) * 1981-07-28 1983-02-02 Ricoh Co Ltd Thermal head
DE3414936A1 (en) * 1983-04-20 1984-10-25 Canon K.K., Tokio/Tokyo Fluid jet recording head
US4940999A (en) * 1983-04-20 1990-07-10 Canon Kabushiki Kaisha Liquid jet recording head
JPS6058877A (en) * 1983-09-13 1985-04-05 Matsushita Electric Ind Co Ltd Thermal recording head
EP0157185A2 (en) * 1984-03-02 1985-10-09 Hitachi, Ltd. Thermal head
US4590489A (en) * 1984-03-02 1986-05-20 Hitachi, Ltd. Thermal head
JPS6183056A (en) * 1984-10-01 1986-04-26 Nec Corp Thermal head
US4762431A (en) * 1986-04-28 1988-08-09 International Business Machines Corporation Modified thermal printing using a heated roller and with lift-off correction
JPH0281645A (en) * 1988-09-19 1990-03-22 Toshiba Corp Thermal recording head
JPH0444863A (en) * 1990-03-26 1992-02-14 Fuji Photo Film Co Ltd Thermal recording head

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