GB1378234A - Printing carriage displacement control arrangement - Google Patents
Printing carriage displacement control arrangementInfo
- Publication number
- GB1378234A GB1378234A GB4739772A GB4739772A GB1378234A GB 1378234 A GB1378234 A GB 1378234A GB 4739772 A GB4739772 A GB 4739772A GB 4739772 A GB4739772 A GB 4739772A GB 1378234 A GB1378234 A GB 1378234A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carriage
- signal
- motor
- displacement
- displacement control
- 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
- B41J19/202—Drive control means for carriage movement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1409—Control of position or direction using feedback using an analogue comparing device with dc amplifier chain
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
Abstract
1378234 Control of printers SOC D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE 13 Oct 1972 [21 Oct 1971] 47397/72 Heading G4H A step-at-a-time printer carriage displacement control device comprises a reversible D.C. motor 5 controlling the displacement by means of gearing 6-9, a movable-slide potentiometer 11 for determining the instantaneous carriage position, a device for recording the next carriage position and a comparator 12 which generates a differential signal for controlling the motor. As the carriage moves along the printing line 3 it moves a cable 10 (on pulleys 15, 16) to adjust the potentiometer slide and thus obtain a voltage Ep proportional to the carriage displacement. The next carriage position (which may be determined by tabulation, carriage return &c.) is generated in a binary counter 17, Fig. 2 (not shown), whose digital output is connected to a resistor-network D/A converter 18, Fig. 3 (not shown), to provide a proportional voltage signal Vs. Comparator 12 outputs a signal Ue = Vs - Ep which is converted at 13 into a signal Us = Ue + k 1 (dVe/dt), amplified at 14 and fed to the motor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7137833A FR2157187A5 (en) | 1971-10-21 | 1971-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1378234A true GB1378234A (en) | 1974-12-27 |
Family
ID=9084703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4739772A Expired GB1378234A (en) | 1971-10-21 | 1972-10-13 | Printing carriage displacement control arrangement |
Country Status (5)
| Country | Link |
|---|---|
| BR (1) | BR7207241D0 (en) |
| DD (1) | DD100207A5 (en) |
| FR (1) | FR2157187A5 (en) |
| GB (1) | GB1378234A (en) |
| NL (1) | NL7213980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427461A (en) * | 1992-08-31 | 1995-06-27 | Canon Kabushiki Kaisha | Serial printer with carriage position control |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0107501A3 (en) * | 1982-10-27 | 1985-08-28 | Royden C. Sanders, Jr. | Position indicator for high speed printers |
-
1971
- 1971-10-21 FR FR7137833A patent/FR2157187A5/fr not_active Expired
-
1972
- 1972-10-13 GB GB4739772A patent/GB1378234A/en not_active Expired
- 1972-10-16 NL NL7213980A patent/NL7213980A/xx unknown
- 1972-10-17 BR BR724172A patent/BR7207241D0/en unknown
- 1972-10-23 DD DD16670072A patent/DD100207A5/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427461A (en) * | 1992-08-31 | 1995-06-27 | Canon Kabushiki Kaisha | Serial printer with carriage position control |
Also Published As
| Publication number | Publication date |
|---|---|
| BR7207241D0 (en) | 1973-09-25 |
| FR2157187A5 (en) | 1973-06-01 |
| NL7213980A (en) | 1973-04-25 |
| DD100207A5 (en) | 1973-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |