US4602880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dot printing device
Assignee: Toshiba TEC Corp
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Filing: 1985-01-14
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Granted: 1986-07-29
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Expires: 2005-01-14
Abstract
Abstract A dot printing device includes a head having a plurality of head pins, a dot driver for selectively energizing the head pins according to dot data, a character generator, and a data processing unit for causing N-bit dot data constituting designated character data to be generated sequentially by the character generator according to input character designation data, and supplied to the head driver. The data processing unit causes a plurality of N-bit dot data corresponding to the input character designation data to be generated from the character generator according to input character designation data and italic printing data, and supplies the lower bit of the N-bit dot data and (N-1) bits with predetermined delay times with respect to the lowest bit to the head driver.
Inventors
- 👤 Ryozo Oba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:24
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/10; G06K2215/00; G06K2215/0002; G06K2215/004; G06K2215/0054
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
177 words
A dot printing device, comprising: a head having N dot printing elements arranged in a row; head driving means for selectively energizing said dot printing elements according to dot data; and data processing means for supplying a plurality of dot data constituting character data designated by input character designation data, while generating a plurality of dot data constituting character data designated by input character designation data, each dot data setting the operating state of each of said N dot printing elements to said head driving means for each printing cycle in an ordinary printing mode, dividing N bits constituting each of said dot data into n (n≦N) bit-groups, and for supplying said n bit-groups sequentially to said head driving means in n successive cycles in an italic printing mode; said data processing means causing a deviation in a print start position in the italic printing mode in a direction opposite to the printing direction by a distance corresponding to a predetermined nonzero number of dots in comparison with the print start position in the ordinary printing mode.
Claim 2
Dependent Claim
177 words
A dot printing device, comprising: a head having N dot printing elements arranged in a row; head driving means for selectively energizing said dot printing elements according to dot data; and data processing means for supplying a plurality of dot data constituting character data designated by input character designation data, while generating a plurality of dot data constituting character data designated by input character designation data, each dot data setting the operating state of each of said N dot printing elements to said head driving means for each printing cycle in an ordinary printing mode, dividing N bits constituting each of said dot data into n (n≦N) bit-groups, and for supplying said n bit-groups sequentially to said head driving means in n successive cycles in an italic printing mode; said data processing means causing a deviation in a print start position in the italic printing mode in a direction opposite to the printing direction by a distance corresponding to a predetermined nonzero number of dots in comparison with the print start position in the ordinary printing mode.
Claim 3
Dependent Claim
15 words
The dot printing device according to claim 1, wherein n is set equal to N.
Claim 4
Dependent Claim
111 words
The dot printing device according to claim 2, wherein said data processing means includes: character generating means; memory means having first and second memory areas; and a data processing unit for storing in said second memory area (N-1)-bit dot data which is generated from said character generating means according to said input character designation data, storing one-bit dot data determined according to the input data in said first memory area, supplying said one-bit dot data stored in said first memory area to said head driving means in a printing cycle and then supplying n bit-groups stored in said second memory area to said head driving means in n successive printing cycles.
Claim 5
Dependent Claim
102 words
The dot printing device according to claim 1, wherein said data processing means includes: character generating means; memory means having first and second memory areas; and a data processing unit for storing in said second memory area (N-1)-bit dot data generated from said character generating means according to said input character designation data, storing one-bit dot data determined according to the input data in said first memory area, supplying said one-bit dot data to said head driving means in a printing cycle and then supplying n bit-groups stored in said second memory area to said head driving means in successive printing cycles.
Claim 6
Dependent Claim
183 words
A dot printing device, comprising: a head having N dot printing elements arranged in a row; head driving means for selectively energizing said dot printing elements according to dot data; and data processing means for supplying a plurality of dot data constituting character data designated by input character designation data to said head driving means for each printing cycle in an ordinary printing mode, while generating a plurality of dot data constituting character data designated by input character designation data, each dot data setting the operating state of each of said N dot printing elements, dividing N bits constituting each of said dot data into n (n≦N) bit-groups determined according to inclination selection data, and for supplying said n bit-groups sequentially to said head driving means in n successive cycles in an italic printing mode; said data processing means causing a deviation in a print start position in the italic printing mode in a direction opposite to the printing direction by a distance corresponding to a predetermined nonzero number of dots in comparison with the print start position in the ordinary printing mode.
Claim 7
Dependent Claim
183 words
A dot printing device, comprising: a head having N dot printing elements arranged in a row; head driving means for selectively energizing said dot printing elements according to dot data; and data processing means for supplying a plurality of dot data constituting character data designated by input character designation data to said head driving means for each printing cycle in an ordinary printing mode, while generating a plurality of dot data constituting character data designated by input character designation data, each dot data setting the operating state of each of said N dot printing elements, dividing N bits constituting each of said dot data into n (n≦N) bit-groups determined according to inclination selection data, and for supplying said n bit-groups sequentially to said head driving means in n successive cycles in an italic printing mode; said data processing means causing a deviation in a print start position in the italic printing mode in a direction opposite to the printing direction by a distance corresponding to a predetermined nonzero number of dots in comparison with the print start position in the ordinary printing mode.
Claim 8
Dependent Claim
104 words
The dot printing device according to claim 5, wherein said data processing means includes: character generating means; memory means having first and second memory areas; and a data processing unit for storing in said second memory area (N-1)-bit dot data generated from said character generating means according to said input character designation data, storing one-bit dot data determined according to the input data in said first memory area, and supplying said one-bit dot data to said head driving means in a printing cycle and then supplying n bit-groups stored in said second memory area to said head driving means in n successive printing cycles.
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) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |