JPS55123785A - Printer control unit - Google Patents
Printer control unitInfo
- Publication number
- JPS55123785A JPS55123785A JP2942579A JP2942579A JPS55123785A JP S55123785 A JPS55123785 A JP S55123785A JP 2942579 A JP2942579 A JP 2942579A JP 2942579 A JP2942579 A JP 2942579A JP S55123785 A JPS55123785 A JP S55123785A
- Authority
- JP
- Japan
- Prior art keywords
- register
- data
- transferred
- microprocessor
- pulse motor
- 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
- 230000005284 excitation Effects 0.000 abstract 3
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
Abstract
PURPOSE: To make it possible to switch accurately excitation data, by making registers, which give excitation signals to a pulse motor for carriage movement control, double.
CONSTITUTION: Data given from a microprocessor through data bus 5 is written into register 102 by write signal 101. Data of register 102 is transferred to register 107 by clock signal 105 supplied from timer 104. The output of register 107 is transferred to pulse motor 109 through driving circuit 108. Signal 105 reports further to the microprocessor that contents of register 102 have been transferred to register 107. The microprocessor writes new data into register 102 before the next clock is generated. As a result, the excitation switching time of the pulse motor for carriage control becomes accurate, and the load of programs can be averaged.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2942579A JPS55123785A (en) | 1979-03-15 | 1979-03-15 | Printer control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2942579A JPS55123785A (en) | 1979-03-15 | 1979-03-15 | Printer control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55123785A true JPS55123785A (en) | 1980-09-24 |
Family
ID=12275771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2942579A Pending JPS55123785A (en) | 1979-03-15 | 1979-03-15 | Printer control unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55123785A (en) |
-
1979
- 1979-03-15 JP JP2942579A patent/JPS55123785A/en active Pending
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