GB1496118A - Printer control system - Google Patents

Printer control system

Info

Publication number
GB1496118A
GB1496118A GB3260076A GB3260076A GB1496118A GB 1496118 A GB1496118 A GB 1496118A GB 3260076 A GB3260076 A GB 3260076A GB 3260076 A GB3260076 A GB 3260076A GB 1496118 A GB1496118 A GB 1496118A
Authority
GB
United Kingdom
Prior art keywords
buffer
lag
data
speed
aug
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
Application number
GB3260076A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1496118A publication Critical patent/GB1496118A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

1496118 Printers INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1976 [20 Aug 1975] 32600/76 Heading G4H The speed of a print head carrier moving along a print line is controlled in accordance with the lag of the printer behind input print data, as measured by a counter incremented as data is supplied to a buffer and decremented as data is supplied from the buffer to be printed. In a first embodiment, the count controls the speed via a D/A converter, the more significant count bits being ORed before supply to the converter. Blank characters are fed into the buffer relatively quickly for carrier return and skipping (tabulation). A modified embodiment has two lag counters, one of which is gated to an arrangement of decoders and counters, according to carrier direction, to control the speed by controlling duration of motor drive pulses. Different parts of the velocity versus lag curve have different slopes.
GB3260076A 1975-08-20 1976-08-05 Printer control system Expired GB1496118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60625575A 1975-08-20 1975-08-20

Publications (1)

Publication Number Publication Date
GB1496118A true GB1496118A (en) 1977-12-30

Family

ID=24427219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3260076A Expired GB1496118A (en) 1975-08-20 1976-08-05 Printer control system

Country Status (7)

Country Link
JP (1) JPS5225532A (en)
AR (1) AR217809A1 (en)
BR (1) BR7605413A (en)
CA (1) CA1061253A (en)
DE (1) DE2632566A1 (en)
GB (1) GB1496118A (en)
IT (1) IT1066872B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1603682A (en) * 1977-05-31 1981-11-25 Nippon Electric Co Position control system
US4194144A (en) * 1977-07-05 1980-03-18 Ncr Corporation Constant velocity driving means
GB2026205B (en) * 1978-06-09 1983-02-16 Nippon Electric Co Digital servo control system
JPS5915275B2 (en) * 1978-06-26 1984-04-09 富士通株式会社 printing device
JPS553198U (en) * 1979-07-02 1980-01-10
JPS5615384A (en) * 1979-07-18 1981-02-14 Ricoh Co Ltd Printer control system
JPS56145476A (en) * 1980-04-15 1981-11-12 Toshiba Corp Printer control system
US4469460A (en) * 1982-09-30 1984-09-04 International Business Machines Corporation Matrix printer with optimum printing velocity

Also Published As

Publication number Publication date
BR7605413A (en) 1978-03-14
IT1066872B (en) 1985-03-12
AR217809A1 (en) 1980-04-30
CA1061253A (en) 1979-08-28
DE2632566A1 (en) 1977-03-03
JPS5543711B2 (en) 1980-11-07
JPS5225532A (en) 1977-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee