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US4650348A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of dot-printing underlines

Assignee: Citizen Watch Co Ltd
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Filing: 1984-12-20
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Granted: 1987-03-17
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Expires: 2004-12-20
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Abstract

Abstract A method of dot-printing underline or the like employing a print head and power source with relatively small capacity. The reciprocation of the print head is divided into a plurality of travels by the command of divisional print so that the required underline print is performed by the collected dot prints being printed at intervals on each of a plurality of travels of the print head. A rest time will be provided between each printing actions at intervals of the print head to reduce the capacity of a power source employed for driving the dot pins in the print head.

Inventors

  • 👤 Masahiko Kaneko
  • 👤 Masao Kunita
  • 👤 Seiichi Ohsawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:36
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/26

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 131 words
A method of dot-printing underlines and ruled lines which comprises: detecting a requirement for underline or ruled line printing among the commands supplied from a host controller, the detecting of said requirement for underline or ruled line printing being achieved by means of determining whether or not a preselected dot line of a plural dot line print head is to be used in the supplied print commands, generating a command for divisional printing when said requirement for underline or ruled line printing is detected, and dividing the motion of the print head into a plurality of travels in response to the command of divisional printing so that the required underline or ruled line printing is performed by printing predetermined dots during each of a plurality of travels of the print head.
Claim 2
Independent Claim 131 words
A method of dot-printing underlines and ruled lines which comprises: detecting a requirement for underline or ruled line printing among the commands supplied from a host controller, the detecting of said requirement for underline or ruled line printing being achieved by means of determining whether or not a preselected dot line of a plural dot line print head is to be used in the supplied print commands, generating a command for divisional printing when said requirement for underline or ruled line printing is detected, and dividing the motion of the print head into a plurality of travels in response to the command of divisional printing so that the required underline or ruled line printing is performed by printing predetermined dots during each of a plurality of travels of the print head.
Claim 3
Independent Claim 123 words
A method of dot-printing underline and ruled lines, which comprises detecting a requirement for underline or ruled line printing among the commands supplied from a host controller, generating a command for divisional printing when said requirement for underline or ruled line printing is detected, and dividing the motion of print head into a plurality of travels in response to the command of divisional printing so that the required underline or ruled line printing is performed by printing during each of a plurality of travels of the print head wherein said underline or ruled line printing is divided into a first divisional printing process which prints two adjacent dots out of every four and a second divisional printing process which prints the remaining dots.
Claim 4
Independent Claim 123 words
A method of dot-printing underline and ruled lines, which comprises detecting a requirement for underline or ruled line printing among the commands supplied from a host controller, generating a command for divisional printing when said requirement for underline or ruled line printing is detected, and dividing the motion of print head into a plurality of travels in response to the command of divisional printing so that the required underline or ruled line printing is performed by printing during each of a plurality of travels of the print head wherein said underline or ruled line printing is divided into a first divisional printing process which prints two adjacent dots out of every four and a second divisional printing process which prints the remaining dots.

References Cited (Backward Citations)

JPS5699688A Cited
JPS58118269A Cited
JPS58119865A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-03-16 1990-09-15 1991-03-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-03-16 1994-09-15 1995-03-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-03-16 1998-09-15 1999-03-17 $7700.00 Window Closed / Lapsed

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