JPS5751481A - Ribbon feeding control mechanism of printer - Google Patents
Ribbon feeding control mechanism of printerInfo
- Publication number
- JPS5751481A JPS5751481A JP12668980A JP12668980A JPS5751481A JP S5751481 A JPS5751481 A JP S5751481A JP 12668980 A JP12668980 A JP 12668980A JP 12668980 A JP12668980 A JP 12668980A JP S5751481 A JPS5751481 A JP S5751481A
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- motor
- ink ribbon
- ribbon
- drum
- 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
Abstract
PURPOSE: To enable a control of a motor immediately on the occurrence of a jamming or twisting of an ink ribbon around a type drum and the like, by providing a control circuit having a thyristor on a DC motor for feeding the ink ribbon.
CONSTITUTION: When an ink ribbon 2 is pressed onto a type drum 3 owing to breaking of a recording paper 4 and the ribbon is drawn into the drum at a high speed, an induced voltage is generated in a drum driving DC motor 6a and the voltage is impressed on a control circuit 7. Therefore a zener diode 11 is made conductive and a voltage is impressed on a gate terminal of a thyristor and thus the thyristor 8 is made conductive. Then, because the induced voltage generated by the DC motor 6a and applied to both the ends of the thyristor 8 functions in the opposite direction, the rotation of a ribbon shaft 1a revolved or driven through the ink ribbon 2 which is rolled around and extended by the type drum is controlled.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12668980A JPS5854995B2 (en) | 1980-09-12 | 1980-09-12 | Printing machine ribbon feed control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12668980A JPS5854995B2 (en) | 1980-09-12 | 1980-09-12 | Printing machine ribbon feed control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5751481A true JPS5751481A (en) | 1982-03-26 |
JPS5854995B2 JPS5854995B2 (en) | 1983-12-07 |
Family
ID=14941405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12668980A Expired JPS5854995B2 (en) | 1980-09-12 | 1980-09-12 | Printing machine ribbon feed control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5854995B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01235678A (en) * | 1988-03-17 | 1989-09-20 | Sanyo Electric Co Ltd | Thermal transfer recorder |
US7572517B2 (en) | 2002-07-08 | 2009-08-11 | Target Technology Company, Llc | Reflective or semi-reflective metal alloy coatings |
-
1980
- 1980-09-12 JP JP12668980A patent/JPS5854995B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01235678A (en) * | 1988-03-17 | 1989-09-20 | Sanyo Electric Co Ltd | Thermal transfer recorder |
US7572517B2 (en) | 2002-07-08 | 2009-08-11 | Target Technology Company, Llc | Reflective or semi-reflective metal alloy coatings |
Also Published As
Publication number | Publication date |
---|---|
JPS5854995B2 (en) | 1983-12-07 |
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