JPS6471772A - Thermal head driving circuit - Google Patents
Thermal head driving circuitInfo
- Publication number
- JPS6471772A JPS6471772A JP22790787A JP22790787A JPS6471772A JP S6471772 A JPS6471772 A JP S6471772A JP 22790787 A JP22790787 A JP 22790787A JP 22790787 A JP22790787 A JP 22790787A JP S6471772 A JPS6471772 A JP S6471772A
- Authority
- JP
- Japan
- Prior art keywords
- register
- heating part
- image information
- stored
- stage
- 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
- 238000010438 heat treatment Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To obtain a circuit which can determine driving conditions of a heating part by referring to many printing past records of the heating part, by a method wherein new image information for driving the heating part is stored according to a latch signal and besides, a plurality of stages of shift registers which store a stored preceding image by shifting it as past image information are established at each heating part. CONSTITUTION:An image signal transferred to a main scan shift register 55 with a transfer clock CK is outputted to a past record shift registers QY1-QY128(QYn) with a latch signal LATCH. At that time, image information of a preceding line which has been stored in the register QY(n, 1) on the first stage of the past record shift register QYn is simultaneously transferred to the register QY(n, 2) on the second stage. Further, the image information of the two lines ahead which has been stored in the QY(n, 2) at that time is simultaneously transferred to the register QY(n, 3) on the third stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22790787A JPS6471772A (en) | 1987-09-11 | 1987-09-11 | Thermal head driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22790787A JPS6471772A (en) | 1987-09-11 | 1987-09-11 | Thermal head driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6471772A true JPS6471772A (en) | 1989-03-16 |
Family
ID=16868169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22790787A Pending JPS6471772A (en) | 1987-09-11 | 1987-09-11 | Thermal head driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6471772A (en) |
-
1987
- 1987-09-11 JP JP22790787A patent/JPS6471772A/en active Pending
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