JPS57189867A - Thermosensitive recorder - Google Patents
Thermosensitive recorderInfo
- Publication number
- JPS57189867A JPS57189867A JP56075003A JP7500381A JPS57189867A JP S57189867 A JPS57189867 A JP S57189867A JP 56075003 A JP56075003 A JP 56075003A JP 7500381 A JP7500381 A JP 7500381A JP S57189867 A JPS57189867 A JP S57189867A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- line
- switch
- count value
- small
- 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
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)
- Fax Reproducing Arrangements (AREA)
Abstract
PURPOSE:To form a picture having uniform quality without difference in recording density, by controlling a current-applying period to a heating resistor element in response to recording intervals between the preceding recording line and the present recording line. CONSTITUTION:Intervals between a recording-instructing signal SCAN for the preceding line and SCAN for the present line are counted by a clock CLK at a counter 6, the obtained count value is memorized in a memory 7, and then pulses PW having fixed width are outputted through a switch 8 from a current- applying timer 5 by said value. Thereafter, PWs are successivly selectively applied to heating blocks (e.g. R1-R4) to do typeprinting (marks EB1-EB3 are inable signals). In said system, the switch 8 adopts a small resistance (e.g. R14) when the count value is small (consequently, a time constant formed with C1 is small), to set the width of the pulses PW at a smaller level. On the contrary, the switch 8 adopts a large resistance (e.g. R16) when the count value is large, to set the width of PW at a large level.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56075003A JPS57189867A (en) | 1981-05-20 | 1981-05-20 | Thermosensitive recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56075003A JPS57189867A (en) | 1981-05-20 | 1981-05-20 | Thermosensitive recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57189867A true JPS57189867A (en) | 1982-11-22 |
Family
ID=13563583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56075003A Pending JPS57189867A (en) | 1981-05-20 | 1981-05-20 | Thermosensitive recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57189867A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548802A1 (en) * | 1983-07-04 | 1985-01-11 | Sony Corp | THERMAL PRINTING SYSTEM FOR PRINTING AN INFORMATION IMAGE ON PRINTING PAPER |
JPS62101468A (en) * | 1985-10-28 | 1987-05-11 | Matsushita Graphic Commun Syst Inc | Temperature information correcting circuit for thermal recorder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55142675A (en) * | 1979-04-24 | 1980-11-07 | Oki Electric Ind Co Ltd | Heat sensitive recording device |
-
1981
- 1981-05-20 JP JP56075003A patent/JPS57189867A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55142675A (en) * | 1979-04-24 | 1980-11-07 | Oki Electric Ind Co Ltd | Heat sensitive recording device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548802A1 (en) * | 1983-07-04 | 1985-01-11 | Sony Corp | THERMAL PRINTING SYSTEM FOR PRINTING AN INFORMATION IMAGE ON PRINTING PAPER |
JPS62101468A (en) * | 1985-10-28 | 1987-05-11 | Matsushita Graphic Commun Syst Inc | Temperature information correcting circuit for thermal recorder |
JPH0630897B2 (en) * | 1985-10-28 | 1994-04-27 | 松下電送株式会社 | Temperature information correction circuit for thermal recorder |
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