JPS57128575A - Resetting device for hammer of printer - Google Patents
Resetting device for hammer of printerInfo
- Publication number
- JPS57128575A JPS57128575A JP1457381A JP1457381A JPS57128575A JP S57128575 A JPS57128575 A JP S57128575A JP 1457381 A JP1457381 A JP 1457381A JP 1457381 A JP1457381 A JP 1457381A JP S57128575 A JPS57128575 A JP S57128575A
- Authority
- JP
- Japan
- Prior art keywords
- hammer
- cam
- printing
- reset
- printer
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J9/00—Hammer-impression mechanisms
- B41J9/16—Means for cocking or resetting hammers
- B41J9/18—Cams
Landscapes
- Impact Printers (AREA)
Abstract
PURPOSE:To reduce contacting of a reset cam with a hammer and to decrease friction and noise, by installing a retreating cam, which retreats a hammer from a reset cam at every one printing period, at a hammer resetter for a printer such as portable computers. CONSTITUTION:Electromagnetic means 36, releasing a hammer 12 from a state to wait for a printing based upon a printing command, are mounted to a printer which incorporates a hammer resetter, each means being positioned at every 3 columns. A hammer 12, selected by a reset cam 20 and the electromagnetic means 36, is driven for hammering a type drum 10 with it to print a desired and selected type. Then, the hammer 12 is reset to a state to wait for printing and at each type through the turning of the reset cam 20. The hammer 12, however, is retreated from the reset cam 20 at every one printing period by means of a retreating cam 42, and this permits a perfect prevention of a contacting action thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1457381A JPS57128575A (en) | 1981-02-03 | 1981-02-03 | Resetting device for hammer of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1457381A JPS57128575A (en) | 1981-02-03 | 1981-02-03 | Resetting device for hammer of printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57128575A true JPS57128575A (en) | 1982-08-10 |
| JPS644917B2 JPS644917B2 (en) | 1989-01-27 |
Family
ID=11864898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1457381A Granted JPS57128575A (en) | 1981-02-03 | 1981-02-03 | Resetting device for hammer of printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57128575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503118A1 (en) * | 1984-01-31 | 1985-08-22 | Citizen Watch Co., Ltd., Tokio/Tokyo | DEVICE FOR GENERATING A RESET PULSE FOR A PRINTER |
| JPS61154957A (en) * | 1984-12-28 | 1986-07-14 | Citizen Watch Co Ltd | Method for driving control of hammer of impact printer |
| US4817522A (en) * | 1983-05-25 | 1989-04-04 | Citizen Watch Co., Ltd. | Printer device |
-
1981
- 1981-02-03 JP JP1457381A patent/JPS57128575A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817522A (en) * | 1983-05-25 | 1989-04-04 | Citizen Watch Co., Ltd. | Printer device |
| DE3503118A1 (en) * | 1984-01-31 | 1985-08-22 | Citizen Watch Co., Ltd., Tokio/Tokyo | DEVICE FOR GENERATING A RESET PULSE FOR A PRINTER |
| JPS61154957A (en) * | 1984-12-28 | 1986-07-14 | Citizen Watch Co Ltd | Method for driving control of hammer of impact printer |
| JPH0351226B2 (en) * | 1984-12-28 | 1991-08-06 | Citizen Watch Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS644917B2 (en) | 1989-01-27 |
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