GB1109208A - Improvements in or relating to power supply circuit arrangements for printing machines - Google Patents
Improvements in or relating to power supply circuit arrangements for printing machinesInfo
- Publication number
- GB1109208A GB1109208A GB30221/66A GB3022166A GB1109208A GB 1109208 A GB1109208 A GB 1109208A GB 30221/66 A GB30221/66 A GB 30221/66A GB 3022166 A GB3022166 A GB 3022166A GB 1109208 A GB1109208 A GB 1109208A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- transistor
- thyristor
- solenoid
- relating
- 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.)
- Expired
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
- B41J9/44—Control for hammer-impression mechanisms
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Impact Printers (AREA)
Abstract
1,109,208. Selective signalling. SOCIETE INDUSTRIELLE BULL-GENERAL ELECTRIC. 5 July, 1966 [27 July, 1965], No. 30221/66. Heading G4H. [Also in Division H3] In a circuit for charging a plurality of capacitors C1, Fig. 2, each associated with a printing hammer solenoid EAM (only the circuitry for one solenoid being shown to the right of line YY), firstly a negative pulse applied to a control terminal 16 fires a thyristor TH1 which causes a common line 15 to fall towards - 80 V (lead 13) via a diode D4, and secondly when line 15 has fallen to - 48 V a Schmitt trigger 17 changes its state and via a transistor T5 and a further thyristor TH2 cuts off the first thyristor TH1. The line 15 is then brought to - 14 V by a potential divider 21, 32 and a conducting transistor T2 if printing is about to take place immediately, otherwise the transistor T2 is cut-off and a Zener diode DZ1 maintains the line 15 at - 48 V. Actuation of a print hammer is achieved by applying a negative pulse to a transistor T7, line 15 having previously been raised to - 14 V which causes the capacitor C1 to discharge through the associated solenoid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR26092A FR1459844A (en) | 1965-07-27 | 1965-07-27 | Power supply arrangement for printing elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1109208A true GB1109208A (en) | 1968-04-10 |
Family
ID=8585317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30221/66A Expired GB1109208A (en) | 1965-07-27 | 1966-07-05 | Improvements in or relating to power supply circuit arrangements for printing machines |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3488519A (en) |
| FR (1) | FR1459844A (en) |
| GB (1) | GB1109208A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373870B1 (en) * | 1988-12-13 | 1994-03-16 | Seiko Epson Corporation | Dot wire driving apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2250102A (en) * | 1940-07-18 | 1941-07-22 | Raytheon Mfg Co | Condenser charging system |
| US2353733A (en) * | 1943-07-03 | 1944-07-18 | Raytheon Mfg Co | Welding system |
| US2470895A (en) * | 1945-12-13 | 1949-05-24 | Elbert W Marlowe | Impulse type power supply |
| US2832928A (en) * | 1953-07-17 | 1958-04-29 | Sylvania Electric Prod | Voltage regulator for pulse forming network |
| US3174096A (en) * | 1961-06-23 | 1965-03-16 | Ampex | D. c. voltage regulating circuit |
-
1965
- 1965-07-27 FR FR26092A patent/FR1459844A/en not_active Expired
-
1966
- 1966-06-24 US US560138A patent/US3488519A/en not_active Expired - Lifetime
- 1966-07-05 GB GB30221/66A patent/GB1109208A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1459844A (en) | 1966-06-17 |
| US3488519A (en) | 1970-01-06 |
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