JPS5689581A - Thermosensitive recorder - Google Patents

Thermosensitive recorder

Info

Publication number
JPS5689581A
JPS5689581A JP16537379A JP16537379A JPS5689581A JP S5689581 A JPS5689581 A JP S5689581A JP 16537379 A JP16537379 A JP 16537379A JP 16537379 A JP16537379 A JP 16537379A JP S5689581 A JPS5689581 A JP S5689581A
Authority
JP
Japan
Prior art keywords
power source
concentration
terminal
voltage
supply circuit
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
JP16537379A
Other languages
Japanese (ja)
Inventor
Kunio Yasumi
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 JP16537379A priority Critical patent/JPS5689581A/en
Publication of JPS5689581A publication Critical patent/JPS5689581A/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

Landscapes

  • Electronic Switches (AREA)
  • Facsimile Heads (AREA)

Abstract

PURPOSE:To improve the life of the captioned device by a method wherein the maximum electric power for the power supply circuit of a recording head made of a power supply circuit including a power source, the 1st and the 2nd group of switching elements is made smaller than an electric power required for energizing a group of M number heating parts simultaneously for recording. CONSTITUTION:One terminal of a variable resistor R0a is connected with one output terminal of a power source 6 and the other terminal of the resistor is connected with each of switching circuits 31-38. When R1=R2=...R1728=240OMEGA and R0a=2OMEGA are given and an electrical current is passed simultaneously through n number heating parts, a load resistance of the power source 6 is 2+240/nOMEGA, a voltage Ve given to each heating part is V.240/(2n+240)volt. When n is small, the voltage nearly equals conventional voltage applied but when n is large the voltage applied decreases remarkably. Then, the contour is recorded clearly in high concentration but the inside is low in concentration. This concentration can be adjusted by the variable resistor attached R0a.
JP16537379A 1979-12-19 1979-12-19 Thermosensitive recorder Pending JPS5689581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16537379A JPS5689581A (en) 1979-12-19 1979-12-19 Thermosensitive recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16537379A JPS5689581A (en) 1979-12-19 1979-12-19 Thermosensitive recorder

Publications (1)

Publication Number Publication Date
JPS5689581A true JPS5689581A (en) 1981-07-20

Family

ID=15811134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16537379A Pending JPS5689581A (en) 1979-12-19 1979-12-19 Thermosensitive recorder

Country Status (1)

Country Link
JP (1) JPS5689581A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463957U (en) * 1990-09-29 1992-06-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0463957U (en) * 1990-09-29 1992-06-01

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