JPS5763279A - Controlling method for heat generation in thermosensitive recording - Google Patents

Controlling method for heat generation in thermosensitive recording

Info

Publication number
JPS5763279A
JPS5763279A JP55138051A JP13805180A JPS5763279A JP S5763279 A JPS5763279 A JP S5763279A JP 55138051 A JP55138051 A JP 55138051A JP 13805180 A JP13805180 A JP 13805180A JP S5763279 A JPS5763279 A JP S5763279A
Authority
JP
Japan
Prior art keywords
level output
supplied
energy
monomultivibrator
time
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
JP55138051A
Other languages
Japanese (ja)
Inventor
Mutsuo Ogawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP55138051A priority Critical patent/JPS5763279A/en
Publication of JPS5763279A publication Critical patent/JPS5763279A/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

Landscapes

  • Facsimile Heads (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To attain recording of stable picture quality by controlling the amount of energy supplied to a heating element corresponding to the time interval in which picture element of one block is obtained, for example, by supplying a small amount of energy to the heating element for small time interval, to quickly control the state of heat storage of a thermal head to an appropriate condition. CONSTITUTION:A group selecting circuit 6 sends make signals sequentially to AND gates A216-A1 in synchronism with the reception of clock pulses (b) which is produced every completion of storing picture signals of one group in a shift register 5. The monomultivibrator 7a of a heat generating energy control circuit 7 is triggered with a record command pulse (a) so that a high-level output is provided for a time period d1. When the high-level output changes into a low-level output, a monomultivibrator 7b is triggered so that a high-level output is produced for a time period d2. When the one line recording period Tl is longer than d1+d2, an electric current is supplied to heating elements R1-R1728 for a long time DELTAT2, whereas an electric current is supplied to the heating elements R1-R1728 for a short time DELTAT1, when Tl is less than d1+d2.
JP55138051A 1980-10-02 1980-10-02 Controlling method for heat generation in thermosensitive recording Pending JPS5763279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55138051A JPS5763279A (en) 1980-10-02 1980-10-02 Controlling method for heat generation in thermosensitive recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55138051A JPS5763279A (en) 1980-10-02 1980-10-02 Controlling method for heat generation in thermosensitive recording

Publications (1)

Publication Number Publication Date
JPS5763279A true JPS5763279A (en) 1982-04-16

Family

ID=15212839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55138051A Pending JPS5763279A (en) 1980-10-02 1980-10-02 Controlling method for heat generation in thermosensitive recording

Country Status (1)

Country Link
JP (1) JPS5763279A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222665A (en) * 1982-06-18 1983-12-24 Matsushita Graphic Commun Syst Inc Heat-sensing recording system
JPS602381A (en) * 1983-06-20 1985-01-08 Toshiba Corp Thermal head and thermal transfer device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102044A (en) * 1976-02-24 1977-08-26 Canon Inc Controller
JPS54153647A (en) * 1978-05-25 1979-12-04 Oki Electric Ind Co Ltd Thermal head driving system
JPS55142675A (en) * 1979-04-24 1980-11-07 Oki Electric Ind Co Ltd Heat sensitive recording device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102044A (en) * 1976-02-24 1977-08-26 Canon Inc Controller
JPS54153647A (en) * 1978-05-25 1979-12-04 Oki Electric Ind Co Ltd Thermal head driving system
JPS55142675A (en) * 1979-04-24 1980-11-07 Oki Electric Ind Co Ltd Heat sensitive recording device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222665A (en) * 1982-06-18 1983-12-24 Matsushita Graphic Commun Syst Inc Heat-sensing recording system
JPS637070B2 (en) * 1982-06-18 1988-02-15 Matsushita Graphic Communic
JPS602381A (en) * 1983-06-20 1985-01-08 Toshiba Corp Thermal head and thermal transfer device
JPH055668B2 (en) * 1983-06-20 1993-01-22 Tokyo Shibaura Electric Co

Similar Documents

Publication Publication Date Title
CA1083487A (en) Matrix print head impact energy control
DE69232855D1 (en) Thermal energy ink jet recording method and apparatus
JPS54148542A (en) Drive method for heat sensitive recording head
JPS5611628A (en) Laser recording method
JPS5763279A (en) Controlling method for heat generation in thermosensitive recording
JPS5412848A (en) Thermal head driving circuit
JPS5479048A (en) Heat sensitive recorder
DE3276087D1 (en) Process and device for controlling a stepping motor in a clock mechanism
JPS56164880A (en) Heat sensitive recording device
JPS57208278A (en) Recording pulse generation controlling circuit for thermal recording head
JPS5784879A (en) Controlling circuit for heat-sensitive type line printer
JPS5619777A (en) Gradation recording device
JPS55150388A (en) Thermal printer
JPS56167480A (en) Driving of thermal head
JPS57208280A (en) Heat-sensitive recorder
JPS6414055A (en) Thermal recording method
JPS57208284A (en) Heat-sensitive recorder
JPS5514711A (en) Facsimile recorder
JPS6490770A (en) Density controller
JPS5458326A (en) Generating system for driving pattern
JPS62108072A (en) Thermal head driving device
JPS6420147A (en) Video printer
JPS57208283A (en) Heat-sensitive recorder
JPS5296035A (en) Power supply method for thermal head
JPS5539307A (en) Method of controlling thermal head recording