JPS5633784A - Print width control device for dot matrix printer - Google Patents
Print width control device for dot matrix printerInfo
- Publication number
- JPS5633784A JPS5633784A JP10982179A JP10982179A JPS5633784A JP S5633784 A JPS5633784 A JP S5633784A JP 10982179 A JP10982179 A JP 10982179A JP 10982179 A JP10982179 A JP 10982179A JP S5633784 A JPS5633784 A JP S5633784A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- constitution
- circuit
- hammer magnet
- 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.)
- Granted
Links
Landscapes
- Dot-Matrix Printers And Others (AREA)
Abstract
PURPOSE: To secure a constant concentration of print with a simple and low-cost constitution of the circuit, by varying the driving width of the hammer magnet in accordance with the number of the print dots.
CONSTITUTION: The shift register 30 delivers the serial output 31 when the print dot signal 19 is set in perallel by the print timing signal 21 and also the shift signal having a different phase from the timer counter 24 is applied from the oscillator 22 and via the inverter 29. The output 31 is then applied to the AND circuit 32 to inhibit the clock input 23 to be applied to the counter 24 when the signal 19 functions as the signal to operate the hammer magnet. Thus the overflow of the counter 24 is delayed by an amount equivalent to the number of signals to operate the hammer magnet. In such way, the more the dot number of the print dot signal, the more the operation time duration of the hammer magnet is extended. As a result, the print concentration is made constant, thus simplifying the circuit constitution with a low cost.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982179A JPS5633784A (en) | 1979-08-28 | 1979-08-28 | Print width control device for dot matrix printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982179A JPS5633784A (en) | 1979-08-28 | 1979-08-28 | Print width control device for dot matrix printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5633784A true JPS5633784A (en) | 1981-04-04 |
| JPS6220035B2 JPS6220035B2 (en) | 1987-05-02 |
Family
ID=14520052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10982179A Granted JPS5633784A (en) | 1979-08-28 | 1979-08-28 | Print width control device for dot matrix printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5633784A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57159663A (en) * | 1981-03-26 | 1982-10-01 | Matsushita Electric Ind Co Ltd | Character processor |
| JPS57162849U (en) * | 1981-04-03 | 1982-10-14 | ||
| JPS606471A (en) * | 1983-06-24 | 1985-01-14 | Canon Inc | Printer head driving apparatus |
| JPS61270165A (en) * | 1985-05-27 | 1986-11-29 | Nec Corp | Electromagnetic-type printing head driving circuit |
-
1979
- 1979-08-28 JP JP10982179A patent/JPS5633784A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57159663A (en) * | 1981-03-26 | 1982-10-01 | Matsushita Electric Ind Co Ltd | Character processor |
| JPS57162849U (en) * | 1981-04-03 | 1982-10-14 | ||
| JPS6313009Y2 (en) * | 1981-04-03 | 1988-04-13 | ||
| JPS606471A (en) * | 1983-06-24 | 1985-01-14 | Canon Inc | Printer head driving apparatus |
| JPS61270165A (en) * | 1985-05-27 | 1986-11-29 | Nec Corp | Electromagnetic-type printing head driving circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6220035B2 (en) | 1987-05-02 |
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