JPS6467364A - Thermal printer - Google Patents

Thermal printer

Info

Publication number
JPS6467364A
JPS6467364A JP22600387A JP22600387A JPS6467364A JP S6467364 A JPS6467364 A JP S6467364A JP 22600387 A JP22600387 A JP 22600387A JP 22600387 A JP22600387 A JP 22600387A JP S6467364 A JPS6467364 A JP S6467364A
Authority
JP
Japan
Prior art keywords
printing
data
control data
history data
printing history
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
JP22600387A
Other languages
Japanese (ja)
Inventor
Kenichi Itahara
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP22600387A priority Critical patent/JPS6467364A/en
Publication of JPS6467364A publication Critical patent/JPS6467364A/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

  • Electronic Switches (AREA)

Abstract

PURPOSE:To enable high-speed and clear printing through flexible correspondence with printing conditions such as the kind of a ribbon, a paper or a thermal head, by preliminarily writing driving time control data in a ROM, and fetching the control data based on printing history data generated from a printing history data generating circuit. CONSTITUTION:A microprocessor 1 operates according to a microprogram, and sends printing/non-printing data on each dot of a thermal head to a printing history data generating circuit 2. The circuit 2 supplied with the printing bit data forms printing history data, and inputs the printing history data to an address input of a ROM 3. Driving time control data is preliminarily written in the ROM 3, and the time control data written at an address corresponding to the inputted printing history data is outputted. A driving time controlling circuit 4, supplied with the control data, gives a driving pulse with a driving time corresponding to the control data to a driving circuit 5, which passes an electric current to a heat generating element in a head 6 for the duration of the given driving pulse. The duration is so set as to obtain a uniform print according to the printing history of each head.
JP22600387A 1987-09-08 1987-09-08 Thermal printer Pending JPS6467364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22600387A JPS6467364A (en) 1987-09-08 1987-09-08 Thermal printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22600387A JPS6467364A (en) 1987-09-08 1987-09-08 Thermal printer

Publications (1)

Publication Number Publication Date
JPS6467364A true JPS6467364A (en) 1989-03-14

Family

ID=16838265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22600387A Pending JPS6467364A (en) 1987-09-08 1987-09-08 Thermal printer

Country Status (1)

Country Link
JP (1) JPS6467364A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139464A (en) * 1983-12-28 1985-07-24 Fuji Xerox Co Ltd Thermal head driving apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139464A (en) * 1983-12-28 1985-07-24 Fuji Xerox Co Ltd Thermal head driving apparatus

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