JPS57113090A - Control circuit for serial printer - Google Patents
Control circuit for serial printerInfo
- Publication number
- JPS57113090A JPS57113090A JP18820180A JP18820180A JPS57113090A JP S57113090 A JPS57113090 A JP S57113090A JP 18820180 A JP18820180 A JP 18820180A JP 18820180 A JP18820180 A JP 18820180A JP S57113090 A JPS57113090 A JP S57113090A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- task
- microprogram
- tasks
- control circuit
- 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
Abstract
PURPOSE: To enable higher speed, meticulous control and effective separation from optional functions by combining specified actions of three kinds of microprograms.
CONSTITUTION: When receiving instructions, first and second microprogram controlling circuits 22 and 23 separately starts tasks imposed under respective microprogram control. On the other hand, a third microprogram controlling circuit 21 as master circuit also devotes itself to own task while always checking a slave circuit for the conditions of the task. It has information on the end of tasks which are sent via a bus line interface 24. When receiving inormation on the end of the task, the circuit 21 excites a coil of a hammer 5 to press a finger 9 of a print wheel 4 against a platen 6 thereby performing a printing. Then, likewise, the subsequent data is provided from an external controller to repeat similar operations.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18820180A JPS57113090A (en) | 1980-12-29 | 1980-12-29 | Control circuit for serial printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18820180A JPS57113090A (en) | 1980-12-29 | 1980-12-29 | Control circuit for serial printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57113090A true JPS57113090A (en) | 1982-07-14 |
Family
ID=16219537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18820180A Pending JPS57113090A (en) | 1980-12-29 | 1980-12-29 | Control circuit for serial printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57113090A (en) |
-
1980
- 1980-12-29 JP JP18820180A patent/JPS57113090A/en active Pending
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