GB1331953A - Printer and control lcircuit therefor - Google Patents

Printer and control lcircuit therefor

Info

Publication number
GB1331953A
GB1331953A GB5295070*A GB5295070A GB1331953A GB 1331953 A GB1331953 A GB 1331953A GB 5295070 A GB5295070 A GB 5295070A GB 1331953 A GB1331953 A GB 1331953A
Authority
GB
United Kingdom
Prior art keywords
hammer
select circuit
print
odd
turn
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
GB5295070*A
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.)
Mohawk Data Sciences Corp
Original Assignee
Mohawk Data Sciences 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 Mohawk Data Sciences Corp filed Critical Mohawk Data Sciences Corp
Publication of GB1331953A publication Critical patent/GB1331953A/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
    • G06K15/06—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by type-wheel printers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

1331953 Printers MOHAWK DATA SCIENCES CORP 6 Nov 1970 [29 Jan 1970] 52950/70 Heading G4H In a printer, a plurality of printing mechanisms are energized by a single driving circuit connected to them in turn. A type drum rotates about an axis parallel to the print line, the characters approaching print position being indicated by a coded disc rotating with it, the disc indications being compared with the characters to be printed in turn to produce a fire pulse for each print column in turn. A clock-driven flip-flop gates the fire pulses to two hammer drivers alternatively, these drivers relating to odd and even print columns respectively. An odd hammer select circuit routes each output pulse from the odd driver to the actuating coil of the appropriate hammer, these coils being arranged in a matrix, two groups of stages of a clock-driven counter being decoded to select a row and a column of the matrix respectively thus selecting a coil at the cross-point to receive the driver output. An even hammer select circuit is similar. The counter in each hammer select circuit is incremented by a clock pulse while the other hammer select circuit is in use, under control of the flip-flop.
GB5295070*A 1970-01-29 1970-01-29 Printer and control lcircuit therefor Expired GB1331953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US685970A 1970-01-29 1970-01-29

Publications (1)

Publication Number Publication Date
GB1331953A true GB1331953A (en) 1973-09-26

Family

ID=21722968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5295070*A Expired GB1331953A (en) 1970-01-29 1970-01-29 Printer and control lcircuit therefor

Country Status (5)

Country Link
US (1) US3633496A (en)
CA (1) CA926783A (en)
DE (1) DE2103525B2 (en)
FR (1) FR2075529A5 (en)
GB (1) GB1331953A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736868A (en) * 1972-03-01 1973-06-05 Mohawk Data Sciences Corp Apparatus for printing serially received data
US3855923A (en) * 1973-06-29 1974-12-24 J Foley Print control system for high speed printers
US3845710A (en) * 1973-10-02 1974-11-05 Teletype Corp Print control logic circuitry for on-the-fly printers
JPS5854673B2 (en) * 1977-04-15 1983-12-06 日立工機株式会社 Printing magnet drive device
US4278021A (en) * 1979-04-13 1981-07-14 Hitachi Koki Company, Limited Magnetic interference prevention system
US4286517A (en) * 1979-07-12 1981-09-01 Hitachi Koki Company Limited Printer magnetic interference prevention system
US5639566A (en) * 1990-09-28 1997-06-17 Kabushiki Kaisha Toshiba Magnetic core

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE26240E (en) * 1960-11-25 1967-07-18 High speed printers with column spanning hammers
US3211087A (en) * 1961-11-28 1965-10-12 Honeywell Inc Hammer control circuit in a high speed printer
US3285165A (en) * 1963-11-14 1966-11-15 Honeywell Inc Print hammer control apparatus
US3366045A (en) * 1965-03-29 1968-01-30 C Olivetri & C S P A Ing Printing device for office machines and data processing equipments
US3442206A (en) * 1966-05-19 1969-05-06 Fujitsu Ltd Apparatus for line printing
US3322064A (en) * 1966-06-02 1967-05-30 Anelex Corp Print drum type matrix and sequential line printing control
DE1573446A1 (en) * 1966-11-08 1971-05-27 Askania Gmbh Electrical differential pressure measuring device
US3443514A (en) * 1967-05-17 1969-05-13 Potter Instrument Co Inc Print hammer timing and energizing means in high speed printers
US3461796A (en) * 1967-11-20 1969-08-19 Honeywell Inc High-speed printer with shared control circuit
US3423641A (en) * 1968-03-07 1969-01-21 Ibm Hammer firing circuit for impact printers
US3467005A (en) * 1968-04-29 1969-09-16 Collins Radio Co Printer hammer drive circuit

Also Published As

Publication number Publication date
DE2103525A1 (en) 1971-08-12
CA926783A (en) 1973-05-22
DE2103525B2 (en) 1976-04-29
FR2075529A5 (en) 1971-10-08
US3633496A (en) 1972-01-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee