JPS55145473A - Heat-sensitive recording system - Google Patents
Heat-sensitive recording systemInfo
- Publication number
- JPS55145473A JPS55145473A JP5252579A JP5252579A JPS55145473A JP S55145473 A JPS55145473 A JP S55145473A JP 5252579 A JP5252579 A JP 5252579A JP 5252579 A JP5252579 A JP 5252579A JP S55145473 A JPS55145473 A JP S55145473A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- heat
- scanning line
- line density
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
- H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Electronic Switches (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
PURPOSE:To ensure the good recording picture at all times in correspondence to the scanning density by varying the heat generating energy to be supplied to the heat generator of the heat-sensitive recording head in accordance with the scanning line density. CONSTITUTION:In case picture signal (a) is recorded with the scanning line density of, for example, 7.7 lines/mm., transistor TRQ of voltage generating circuit 8 is turned off by scanning line density signal (c). As a result, the feedback voltage to be supplied to error amplifying circuit 8B rises up. Circuit 8B applies the error voltage between the feedback voltage of its own and the reference voltage generated from reference voltage generating circuit 8C to voltage control circuit 8A. Circuit 8A gives the control to DC voltage (b) supplied in order to secure the zero error voltage, and as a result the output voltage of circuit 8 is lowered to supply low voltage (d) to driving circuit 6. Accordingly, the heat generating element of heat- sensitive recording head 3 generates the heat at the temperature according to voltage (d). Then in case the recording is carried out with the scanning line density of 3.85 lines/mm., the TRQ is turned on to supply high voltage (d) to circuit 6. As a result, the area is increased for the recording dot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5252579A JPS55145473A (en) | 1979-05-01 | 1979-05-01 | Heat-sensitive recording system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5252579A JPS55145473A (en) | 1979-05-01 | 1979-05-01 | Heat-sensitive recording system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55145473A true JPS55145473A (en) | 1980-11-13 |
Family
ID=12917155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5252579A Pending JPS55145473A (en) | 1979-05-01 | 1979-05-01 | Heat-sensitive recording system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55145473A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797768A (en) * | 1980-12-10 | 1982-06-17 | Fuji Xerox Co Ltd | Copying machine |
| JPS5797771A (en) * | 1980-12-10 | 1982-06-17 | Fuji Xerox Co Ltd | Copying machine |
-
1979
- 1979-05-01 JP JP5252579A patent/JPS55145473A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797768A (en) * | 1980-12-10 | 1982-06-17 | Fuji Xerox Co Ltd | Copying machine |
| JPS5797771A (en) * | 1980-12-10 | 1982-06-17 | Fuji Xerox Co Ltd | Copying machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE142562T1 (en) | INK JET RECORDING METHOD AND THERMAL ENERGY APPARATUS | |
| DE69130488D1 (en) | Ink jet recording apparatus using thermal energy and operating method therefor | |
| EP0353925A3 (en) | Ink jet recording substrate, recording head and apparatus using same | |
| DE69328942D1 (en) | Ink jet recording device | |
| JPS57128570A (en) | Printer | |
| ATE116599T1 (en) | RECORDING HEAD. | |
| JPS52119946A (en) | Drive system for thermal recording unit | |
| KR880002098A (en) | Thermal head printing control device | |
| DE69122050D1 (en) | Ink jet print head with control circuit therefor | |
| JPS5949985A (en) | Heat-sensitive printing system | |
| JPS55145473A (en) | Heat-sensitive recording system | |
| JPS5290952A (en) | Process for applying energizing pulse of thermal printer | |
| JPS56111681A (en) | Adjustment of driving condition of thermal printer head | |
| JPS5638280A (en) | Thermal recording device | |
| JPS57208278A (en) | Recording pulse generation controlling circuit for thermal recording head | |
| JPS6414055A (en) | Thermal recording method | |
| JPS5332746A (en) | Thermal printer | |
| JPS5544653A (en) | Temperature controller and recording pen using said controller | |
| JPS5621877A (en) | Thermal head | |
| JPS57165276A (en) | Driving system for thermal printer | |
| JPS649758A (en) | Thermal transfer gradation controller | |
| JPS5782065A (en) | Heat-sensitive recording device | |
| JPS54141636A (en) | Charge voltage generator | |
| JPS6461271A (en) | Thermal recording device | |
| JPS5398845A (en) | Heat sensitive recorder |