JPS5566073A - Dot print control unit - Google Patents
Dot print control unitInfo
- Publication number
- JPS5566073A JPS5566073A JP13788378A JP13788378A JPS5566073A JP S5566073 A JPS5566073 A JP S5566073A JP 13788378 A JP13788378 A JP 13788378A JP 13788378 A JP13788378 A JP 13788378A JP S5566073 A JPS5566073 A JP S5566073A
- Authority
- JP
- Japan
- Prior art keywords
- dot
- control unit
- data
- head
- 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
Landscapes
- Dot-Matrix Printers And Others (AREA)
Abstract
PURPOSE: To shorten the effective print time without increment of a memory capacity by using a control unit and a ring buffer to change the moving speed of the print head according to print patterns and controlling the print time.
CONSTITUTION: Print head 306 prints continuously characters, patterns, etc., consisting of dot combinations while moving in a direction rectangular to the dot line. Main memory 302 includes ring buffer 303 where dot data or pulse interval set data is stored circularlly, and data from buffer 303 is stored in dot buffer register 305, and this dot data is controlled by direct memory access DMA control unit 304 to drive head 306. Thus, the moving speed of head 306 is changed according to print patterns to control the print time, so that the effective print time can be shortened without increment of the memory capacity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13788378A JPS5566073A (en) | 1978-11-10 | 1978-11-10 | Dot print control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13788378A JPS5566073A (en) | 1978-11-10 | 1978-11-10 | Dot print control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566073A true JPS5566073A (en) | 1980-05-19 |
Family
ID=15208906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13788378A Pending JPS5566073A (en) | 1978-11-10 | 1978-11-10 | Dot print control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566073A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53120429A (en) * | 1977-03-29 | 1978-10-20 | Hitachi Ltd | Printing apparatus of dot type |
-
1978
- 1978-11-10 JP JP13788378A patent/JPS5566073A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53120429A (en) * | 1977-03-29 | 1978-10-20 | Hitachi Ltd | Printing apparatus of dot type |
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