JPS55111276A - Print checking system in printer - Google Patents
Print checking system in printerInfo
- Publication number
- JPS55111276A JPS55111276A JP1887979A JP1887979A JPS55111276A JP S55111276 A JPS55111276 A JP S55111276A JP 1887979 A JP1887979 A JP 1887979A JP 1887979 A JP1887979 A JP 1887979A JP S55111276 A JPS55111276 A JP S55111276A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- printing head
- alarm
- operating circuit
- printing
- 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 detect the rotation of a printing head when it continues to rotate by generation of a print checking signal in a period from an estimated time where the rotation of the printing head comes to a stop to a time where a hammer started its operation.
CONSTITUTION: In a signal K for checking the printing action, in a period from an estimated time t1 where the speed signal of the printing head becomes zero to a time t2 where the hammer finishes its printing action, the signal is generated at an operating circuit 3 while the timing of a position pulse lock designating signal is observed. When the speed signal of the printing head becomes the proximity of zero, there is no output at the point D. Upon this occasion, even when the check signal is generated, a comparison operating circuit 11 does not act, and no alarm appears at an alarm delivering terminal 12. However, when the printing head continues to rotate due to any trouble or the like of the motor or motor driving circuit, and the speed signal is not lowered from the value of +Vs the comparison operating circuit 11 operates by the check signal K, and an alarm signal is obtained at the alarm delivering terminal 12.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1887979A JPS55111276A (en) | 1979-02-20 | 1979-02-20 | Print checking system in printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1887979A JPS55111276A (en) | 1979-02-20 | 1979-02-20 | Print checking system in printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55111276A true JPS55111276A (en) | 1980-08-27 |
Family
ID=11983831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1887979A Pending JPS55111276A (en) | 1979-02-20 | 1979-02-20 | Print checking system in printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55111276A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61279576A (en) * | 1985-06-05 | 1986-12-10 | Matsushita Electric Ind Co Ltd | Electronic typewriter |
-
1979
- 1979-02-20 JP JP1887979A patent/JPS55111276A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61279576A (en) * | 1985-06-05 | 1986-12-10 | Matsushita Electric Ind Co Ltd | Electronic typewriter |
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