JPS57193380A - Recording method - Google Patents

Recording method

Info

Publication number
JPS57193380A
JPS57193380A JP7984781A JP7984781A JPS57193380A JP S57193380 A JPS57193380 A JP S57193380A JP 7984781 A JP7984781 A JP 7984781A JP 7984781 A JP7984781 A JP 7984781A JP S57193380 A JPS57193380 A JP S57193380A
Authority
JP
Japan
Prior art keywords
electrodes
electrode
stylus
current
voltage
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
JP7984781A
Other languages
Japanese (ja)
Inventor
Yukio Tabata
Toshiyuki Kawanishi
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 JP7984781A priority Critical patent/JPS57193380A/en
Publication of JPS57193380A publication Critical patent/JPS57193380A/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)

Abstract

PURPOSE:To eliminate the clear of dot or irregular density in a recorder which transfers ink on a recording sheet between a stylus electrode and a returning electrode by providing a current reverse flow preventing diode between the stylus electrodes and their output terminals. CONSTITUTION:A picture signal voltage of a DC power source circuit 84 is selectively applied between stylus electrodes 5 and returning electrodes 7 by controlling scanning switches 82, 83 by a drive circuit 85 and controlling a scanning switch 81 by a drive circuit 86. A current density is high under the electrodes 5 to which a voltage is applied and the part of the ink sheet 1 directly under the electrode is molten by Joule heat and is transferred to a recording sheet 1. In this case, a current from the electrode 5 is flowed toward the electrode 7, but tends to leak to the stylus electrodes to which no voltage is applied. However, since diodes 9 are provided between the electrodes 5 and the switch 81, reverse current can be prevented.
JP7984781A 1981-05-26 1981-05-26 Recording method Pending JPS57193380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7984781A JPS57193380A (en) 1981-05-26 1981-05-26 Recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7984781A JPS57193380A (en) 1981-05-26 1981-05-26 Recording method

Publications (1)

Publication Number Publication Date
JPS57193380A true JPS57193380A (en) 1982-11-27

Family

ID=13701587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7984781A Pending JPS57193380A (en) 1981-05-26 1981-05-26 Recording method

Country Status (1)

Country Link
JP (1) JPS57193380A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930309A (en) * 1972-07-14 1974-03-18
JPS555953A (en) * 1978-06-28 1980-01-17 Fuji Photo Film Co Ltd Remoistening adhesive paper

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930309A (en) * 1972-07-14 1974-03-18
JPS555953A (en) * 1978-06-28 1980-01-17 Fuji Photo Film Co Ltd Remoistening adhesive paper

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