Patent US4818129A successfully refreshed from Google Patents.
US4818129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for correcting bidirectional printing alignment of a serial dot printer
Assignee: Oki Electric Industry Co Ltd
•
Filing: 1987-10-02
•
Granted: 1989-04-04
•
Expires: 2007-10-02
Abstract
Abstract In a method for operating a serial dot matrix printer having a print head that is reciprocated along a first direction and stopped for performing bi-directional printing on a medium that is moved in a second direction orthogonal to the first direction, correction amounts for correcting the bi-directional printing alignment are stored in a memory device. The desire correction amount is then selected and stored in a battery-backed-up memory. The bi-directional printing then is performed using the desired correction amount stored in the battery-backed-up memory.
Inventors
- 👤 Jiro Tanuma
- 👤 Kuniharu Hayashi
- 👤 Shinichi Katakura
- 👤 Hiroshi Sakaino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/485; B41J2/505; B41J2/5056; B41J19/00; B41J19/14; B41J19/142; B41J19/145; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/40; G05B19/408; G05B2219/00; G05B2219/30; G05B2219/36; G05B2219/36088; G05B2219/45; G05B2219/45187
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
109 words
A method for operating a serial dot matrix printer having a print head that is reciprocated along a first direction and stopped for performing bi-directional printing on a medium that is moved in a second direction orthogonal to said first direction, said method comprising the steps of: storing in a memory device a set of correction amounts for correcting bi-directional printing alignment; reading and successively printing said correction amounts; manipulating a key, when a desired correction amount is printed, to input a command signal for registering said desired correction amount in a battery-backed-up memory; and performing said bi-directional printing using said desired correction amount registered in said battery-backed-up memory.
Claim 2
Independent Claim
109 words
A method for operating a serial dot matrix printer having a print head that is reciprocated along a first direction and stopped for performing bi-directional printing on a medium that is moved in a second direction orthogonal to said first direction, said method comprising the steps of: storing in a memory device a set of correction amounts for correcting bi-directional printing alignment; reading and successively printing said correction amounts; manipulating a key, when a desired correction amount is printed, to input a command signal for registering said desired correction amount in a battery-backed-up memory; and performing said bi-directional printing using said desired correction amount registered in said battery-backed-up memory.
Claim 3
Dependent Claim
27 words
A method according to claim 1, wherein said step of reading and successively printing comprises printing one of said correction amounts each time a key is manipulated.
Claim 4
Dependent Claim
57 words
A method according to claim 1, further comprising the steps of: pressing simultaneously a POWER-ON key of said printer and a first key provided on an operation panel of said printer and then pressing a second key on said operation panel to enter a mode for successively printing said correction amounts and registering said desired correction amount.
Claim 5
Dependent Claim
30 words
A method according to claim 1, wherein said step of storing in a memory device a set of correction amounts comprises storing said correction amounts in a read only memory
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |