JPS57126678A - Controlling method for driving of thernal recoding device - Google Patents

Controlling method for driving of thernal recoding device

Info

Publication number
JPS57126678A
JPS57126678A JP1151881A JP1151881A JPS57126678A JP S57126678 A JPS57126678 A JP S57126678A JP 1151881 A JP1151881 A JP 1151881A JP 1151881 A JP1151881 A JP 1151881A JP S57126678 A JPS57126678 A JP S57126678A
Authority
JP
Japan
Prior art keywords
driving
heating elements
circuit
information
driving 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.)
Granted
Application number
JP1151881A
Other languages
Japanese (ja)
Other versions
JPS6160781B2 (en
Inventor
Koutarou Yoshimura
Masae Ogoshi
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
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1151881A priority Critical patent/JPS57126678A/en
Publication of JPS57126678A publication Critical patent/JPS57126678A/en
Publication of JPS6160781B2 publication Critical patent/JPS6160781B2/ja
Granted 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

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To attain the title controlling method capable of maintaining the recording density uniformly without any medium of an expensive power source or mannual operation by a constitution wherein a thermal recording device itself selects a driving time in accordance with the heating characteristic of the thermal head of its own. CONSTITUTION:Simultaneously when a current detecting circuit 5 detects that the total current flowing through heating elements of the thermal head 1 reaches a prescribed reference current value, an information indicating the total numbers of driving heating elements is supplied by a gate 6. While a driving control information generating circuit 7 memorizes an information on the width of a driving pulse corresponding to the number of the driving heating elements beforehand, it reads out an information on the width of a driving pulse corresponding to recording pattern data being supplied and outputs the same to a latch circuit 8, and through the intermediary of said circuit, a driving pulse generating circuit 9 generates the driving pulse in a driving circuit 4. During the period of stoppage, the arbitrary number of heating elements are driven, while the information on the width of the driving pulse is generated by increasing the number of the driving heating elements one by one, and thus the driving time is controlled in accordance with the heating characteristic of the thermal head.
JP1151881A 1981-01-30 1981-01-30 Controlling method for driving of thernal recoding device Granted JPS57126678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1151881A JPS57126678A (en) 1981-01-30 1981-01-30 Controlling method for driving of thernal recoding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1151881A JPS57126678A (en) 1981-01-30 1981-01-30 Controlling method for driving of thernal recoding device

Publications (2)

Publication Number Publication Date
JPS57126678A true JPS57126678A (en) 1982-08-06
JPS6160781B2 JPS6160781B2 (en) 1986-12-22

Family

ID=11780207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1151881A Granted JPS57126678A (en) 1981-01-30 1981-01-30 Controlling method for driving of thernal recoding device

Country Status (1)

Country Link
JP (1) JPS57126678A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011373A (en) * 1983-06-30 1985-01-21 Yamato Scale Co Ltd Printing apparatus
JPS6241056A (en) * 1985-08-19 1987-02-23 Mitsubishi Electric Corp Recording head
JPH0593838U (en) * 1992-02-20 1993-12-21 大和製衡株式会社 Printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011373A (en) * 1983-06-30 1985-01-21 Yamato Scale Co Ltd Printing apparatus
JPS6241056A (en) * 1985-08-19 1987-02-23 Mitsubishi Electric Corp Recording head
JPH0593838U (en) * 1992-02-20 1993-12-21 大和製衡株式会社 Printer

Also Published As

Publication number Publication date
JPS6160781B2 (en) 1986-12-22

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