JPS5527208A - Heat sensitive recording apparatus - Google Patents
Heat sensitive recording apparatusInfo
- Publication number
- JPS5527208A JPS5527208A JP9913178A JP9913178A JPS5527208A JP S5527208 A JPS5527208 A JP S5527208A JP 9913178 A JP9913178 A JP 9913178A JP 9913178 A JP9913178 A JP 9913178A JP S5527208 A JPS5527208 A JP S5527208A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- temperature
- heating
- thermal head
- signals
- 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
-
- 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
- B41J2/365—Print density control by compensation for variation in temperature
Landscapes
- Facsimile Heads (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To provide a heat sensitive recording apparatus which permits the thermal head free from heating injury for a constant thickness printing by checking the heating element for its temperature while the printing movement is in pause and controlling the heating current accordingly. CONSTITUTION:The thermal head 3 receives electric power from power supply circuit 6 accordingly to printing signals for heating printing. Timing signals alternately determine the printing period and sampling period for voltage drop (a period in printing signals to pause a printing movement for checking the voltage drop of heating element due to constant current.). Data on the thermal head temperature is constantly put into the temperature checking circuit 7. Signals from checked temperature are compared with pre-determined temperature values and power supply from power supply circuit 6 to the thermal head 3 is controlled to permit a heating printing at pre-determined temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9913178A JPS5527208A (en) | 1978-08-16 | 1978-08-16 | Heat sensitive recording apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9913178A JPS5527208A (en) | 1978-08-16 | 1978-08-16 | Heat sensitive recording apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5527208A true JPS5527208A (en) | 1980-02-27 |
Family
ID=14239181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9913178A Pending JPS5527208A (en) | 1978-08-16 | 1978-08-16 | Heat sensitive recording apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527208A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58138665A (en) * | 1982-02-12 | 1983-08-17 | Fuji Xerox Co Ltd | Driving device for heat-sensitive recording head |
JPS59143660A (en) * | 1983-02-07 | 1984-08-17 | Matsushita Electric Ind Co Ltd | Heat-sensitive type printer |
JPH08169133A (en) * | 1994-12-16 | 1996-07-02 | Nec Data Terminal Ltd | Thermal head device |
WO2007122710A1 (en) * | 2006-04-20 | 2007-11-01 | Fukuoka Technoken Kogyo, Co., Ltd. | Heating discharge type printing head and its drive method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS493209A (en) * | 1972-04-25 | 1974-01-12 | ||
JPS5332746A (en) * | 1976-09-08 | 1978-03-28 | Toshiba Corp | Thermal printer |
JPS5343539A (en) * | 1976-10-01 | 1978-04-19 | Hitachi Ltd | Thermal head |
JPS5375944A (en) * | 1976-12-16 | 1978-07-05 | Watanabe Sokki Seisakusho | Thermosensitive recording pen |
-
1978
- 1978-08-16 JP JP9913178A patent/JPS5527208A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS493209A (en) * | 1972-04-25 | 1974-01-12 | ||
JPS5332746A (en) * | 1976-09-08 | 1978-03-28 | Toshiba Corp | Thermal printer |
JPS5343539A (en) * | 1976-10-01 | 1978-04-19 | Hitachi Ltd | Thermal head |
JPS5375944A (en) * | 1976-12-16 | 1978-07-05 | Watanabe Sokki Seisakusho | Thermosensitive recording pen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58138665A (en) * | 1982-02-12 | 1983-08-17 | Fuji Xerox Co Ltd | Driving device for heat-sensitive recording head |
JPS59143660A (en) * | 1983-02-07 | 1984-08-17 | Matsushita Electric Ind Co Ltd | Heat-sensitive type printer |
JPH08169133A (en) * | 1994-12-16 | 1996-07-02 | Nec Data Terminal Ltd | Thermal head device |
WO2007122710A1 (en) * | 2006-04-20 | 2007-11-01 | Fukuoka Technoken Kogyo, Co., Ltd. | Heating discharge type printing head and its drive method |
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