US4488827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous vertical line print control system
Assignee: Ricoh Co Ltd
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Filing: 1983-05-05
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Granted: 1984-12-18
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Expires: 2003-05-05
Abstract
Abstract A system and method for controlling printing to allow to obtain a long vertical line which is continuous even if a reduction in height of font is produced due to the occurrence of font change between the two consecutive print lines is provided.
Inventors
- 👤 Tomoyuki Haganuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:06
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K2215/00; G06K2215/0082
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
A print control system for use in a printer capable of carrying out printing at a predetermined print line pitch with a selected one of a plurality of different kinds of fonts which are different in size, at least in height, said system comprising: first storing means for storing a first set of line print data to be used for printing a (n-1)th print line, where n is a positive integer; second storing means for storing a second set of line print data to be used for printing a nth print line which immediately follows said (n-1)th print line; and additional vertical line printing control means for printing at least one additional vertical line between said (n-1)th and nth print lines if a reduction in height of font occurs due to change in font from said (n-1)th print line to said nth print line and if said first set of line print data includes at least one vertical line code and said second set of line print data includes at least one vertical line code located in the same column position as said at least one vertical line code in said first set of line print data.
Claim 2
Dependent Claim
197 words
A print control system for use in a printer capable of carrying out printing at a predetermined print line pitch with a selected one of a plurality of different kinds of fonts which are different in size, at least in height, said system comprising: first storing means for storing a first set of line print data to be used for printing a (n-1)th print line, where n is a positive integer; second storing means for storing a second set of line print data to be used for printing a nth print line which immediately follows said (n-1)th print line; and additional vertical line printing control means for printing at least one additional vertical line between said (n-1)th and nth print lines if a reduction in height of font occurs due to change in font from said (n-1)th print line to said nth print line and if said first set of line print data includes at least one vertical line code and said second set of line print data includes at least one vertical line code located in the same column position as said at least one vertical line code in said first set of line print data.
Claim 3
Independent Claim
206 words
A method for controlling printing of a printer capable of carrying out printing at a predetermined print line pitch with a selected one of a plurality of different kinds of fonts which are different in size, at least in height, said method comprising the steps of: storing a first set of line print data to be used for printing a (n-1)th print line in a first buffer memory, where n is a positive integer; storing a second set of line print data to be used for printing a nth print line in a second buffer memory, which immediately follows said (n-1)th print line; and printing at least one additional vertical line between said (n-1)th and nth print lines if a reduction in height of font occurs due to change in font from said (n-1)th print line to said nth print line and if said first set of line print data includes at least one vertical line code and said second set of line print data includes at least one vertical line code located in the same column position as said at least one vertical line code in said first set of line print data thereby allowing to form a printed long vertical line which is continuous.
Claim 4
Independent Claim
206 words
A method for controlling printing of a printer capable of carrying out printing at a predetermined print line pitch with a selected one of a plurality of different kinds of fonts which are different in size, at least in height, said method comprising the steps of: storing a first set of line print data to be used for printing a (n-1)th print line in a first buffer memory, where n is a positive integer; storing a second set of line print data to be used for printing a nth print line in a second buffer memory, which immediately follows said (n-1)th print line; and printing at least one additional vertical line between said (n-1)th and nth print lines if a reduction in height of font occurs due to change in font from said (n-1)th print line to said nth print line and if said first set of line print data includes at least one vertical line code and said second set of line print data includes at least one vertical line code located in the same column position as said at least one vertical line code in said first set of line print data thereby allowing to form a printed long vertical line which is continuous.
Claim 5
Dependent Claim
28 words
A method of claim 2, wherein each of said fonts is defined in the form of m x n dot matrix, where m and n are positive integers.
Claim 6
Dependent Claim
68 words
A method of claim 3, wherein, prior to the step of printing at least one additional vertical line, said second set of line print data stored in said second buffer memory except those vertical line codes which are located same in column position as vertical line codes of said first set of line print data stored in said first buffer memory are all converted to a predetermined code.
Claim 7
Dependent Claim
13 words
A method of claim 4, wherein said predetermined code is a space code.
Claim 8
Dependent Claim
13 words
A method of claim 4, wherein said predetermined code is an invalid code.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |