US3557929A - Programmed line pitch printer - Google Patents

Programmed line pitch printer Download PDF

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Publication number
US3557929A
US3557929A US729272A US3557929DA US3557929A US 3557929 A US3557929 A US 3557929A US 729272 A US729272 A US 729272A US 3557929D A US3557929D A US 3557929DA US 3557929 A US3557929 A US 3557929A
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US
United States
Prior art keywords
carriage
line
line pitch
storage device
pulses
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Expired - Lifetime
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US729272A
Inventor
Frederick W Schaaf
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International Business Machines Corp
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International Business Machines Corp
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Publication date
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    • 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
    • G06K15/08—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by flight printing with type font moving in the direction of the printed line, e.g. chain 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S400/00—Typewriting machines
    • Y10S400/902—Stepping-motor drive for web feed

Definitions

  • Giolma ABSTRACT A carriage control system provides programmed selection between values of line pitch at which a printer is to operate. Selection of one or the other of two values of line pitch is made by detecting the presence or absence of a flag bit in the first address position of a carriage control buffer used to store coded representations of channel skip commands which determine the skip operations of the printer carriage.
  • PATENTEDJANZSIQYI v 33551929 sum 010F24 IN VE N TOR FREDERICK w. SCHAAF ATTORNF Y PATENIEuJAnzslsn 3557.929

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

Abstract

A carriage control system provides programmed selection between values of line pitch at which a printer is to operate. Selection of one or the other of two values of line pitch is made by detecting the presence or absence of a flag bit in the first address position of a carriage control buffer used to store coded representations of channel skip commands which determine the skip operations of the printer carriage.

Description

United States Patent Frederick W. Schaaf Owego, N .Y.
May 15, 1968 Jan. 26, 1971 International Business Machines Corporation Armonk, N.Y.
a corporation of New York Inventor Appl. No. Filed Patented Assignee PROGRAMMED LINE PITCH PRINTER I 3 Claims, 27 Drawing Figs.
u.s.c| 197/133 Int. Cl B4ljl5/00 Field otSearch 197/19,20,
References Cited UNITED STATES PATENTS 2/1919 Corcoran 2,659,472 11/1953 Stimson 197/133 2,747,717 5/1956 Cunningham et a1 197/133 2,831,561 4/1958 Speh.......... 197/133UX 3,094,261 6/1963 Thompson. 197/133X 3,272,303 9/1966 Pohl 197/114 3,280,957 10/1966 Thiel 197/114 3,326,348 6/1967 Cralle et a1. 197/114 3,354,816 11/1967 Giannuzzi Primary Examiner-Ernest T. Wright, Jr. Att0rneysl'lanifin and Jancin and Francis V. Giolma ABSTRACT: A carriage control system provides programmed selection between values of line pitch at which a printer is to operate. Selection of one or the other of two values of line pitch is made by detecting the presence or absence of a flag bit in the first address position of a carriage control buffer used to store coded representations of channel skip commands which determine the skip operations of the printer carriage.
PATENTEDJANZSIQYI v 33551929 sum 010F24 IN VE N TOR FREDERICK w. SCHAAF ATTORNF Y PATENIEuJAnzslsn 3557.929
saw us or 24 FIG. 2 h
VOLTAGE SENSE LEVEL CARR/AGE Q CONTROL BUFFER PATENTEUJANZBIBYI 0 3557,9291
sum 18 0F 24 00/ /00/ 1/0 00/ 00/ 00 00 i 1760 00/ 00/ 00000 0 I 00/0 0000 0000/00 & 0000000 00/ 00/0 mo comm/m0 0000 00/0/00 s0/2 REJECT 0000 000/000 00/// 15a m0 0 00/ 005/ WW0! 139 I 83 0000 0/00 00 1000000 00/ 0/00 000000 mb 5b 0/10/00 000 0000 000/000 00/ INVALID 173a 000$ 000$ LATCH 0000/00 0050/ INVALID A763. CCB 00/ 000 000//r/--- CCB 0 LOAD PARITY LATCH LATCH 0 v H6b i 173 e 17)6e Li 0400000 000000; CAR|AGE 5750 0 FAILURE LATCH 00/000 00/ 00/ 0 2 mo 000/0 000 000 0000/ I 0R FIG. 2q

Claims (3)

1. In a line pitch control system controlling the amount of movEment for each line advance of a printer carriage having drive means operated in a step-by-step manner by pulses to actuate said carriage to advance a document on which a printer operation is to be performed a fixed increment less than one line for each of said pulses; means for applying an initial pulse to said drive means to cause it to step; means including a line counter operable to determine the number of lines the carriage advances; means responsive to each step of said drive means connected to said drive means to apply additional pulses to said drive means; carriage counting means connected to said drive means to count said initial and additional pulses for each line advance; stop means connected to said line counter and said carriage counting means controlled by predetermined counts of said carriage counting means and said line counter, and connected to said drive means to apply a predetermined number of stop pulses to said drive means and to render said additional pulses ineffective; and line pitch control means including a programmable storage device connected to said carriage counting means by circuit means responsive to the presence or absence of a control bit in said programmable storage device to selectively condition said carriage counting means to count different numbers of pulses before reaching said predetermined count for advancing the document different amounts for each line advance before effecting application of said stop pulses, to effect different line pitch advances.
2. The invention as defined in claim 1 characterized by said line pitch control means comprising a bistable circuit element having two operating conditions and being connected to said carriage counting means to preset said carriage counting means to one initial count in response to detecting said control bit in one storage position of said programmable storage device and to preset said carriage counting means to another initial count in response to detecting the absence of a bit in said one storage position.
3. The invention as defined in claim 2 characterized by said programmable storage device comprising a carriage control buffer storage device, said bistable circuit element comprising a line pitch latch, and said circuit means including an address 1 latch connected to said storage device and said line pitch latch to detect a bit in the address 1 position of said carriage control buffer storage device for setting said line pitch latch, the absence of a bit being used to reset said line pitch latch.
US729272A 1968-05-15 1968-05-15 Programmed line pitch printer Expired - Lifetime US3557929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72927268A 1968-05-15 1968-05-15

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US3557929A true US3557929A (en) 1971-01-26

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US729272A Expired - Lifetime US3557929A (en) 1968-05-15 1968-05-15 Programmed line pitch printer

Country Status (10)

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US (1) US3557929A (en)
JP (1) JPS5025776B1 (en)
BE (1) BE732353A (en)
CH (1) CH483675A (en)
DE (1) DE1920491C3 (en)
ES (1) ES367238A1 (en)
FR (1) FR2014129A6 (en)
GB (1) GB1246707A (en)
NL (1) NL6905593A (en)
SE (1) SE349879B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857471A (en) * 1973-09-12 1974-12-31 Burroughs Corp Tapeless paper motion control system providing sensing circuits to govern motor incrementing
US3888340A (en) * 1973-06-01 1975-06-10 Burroughs Corp Variable pitch tapeless format control system for line printers
US4026405A (en) * 1972-11-09 1977-05-31 Compagnie Honeywell Bull (Societe Anonyme) Process and apparatus for determining the magnitude of the paper advance commanded in a printing machine
US4311399A (en) * 1977-02-09 1982-01-19 Sycor, Inc. Method and apparatus for setting and varying margins and line spacing on data printers
US4772142A (en) * 1984-12-17 1988-09-20 Canon Kabushiki Kaisha Document processing system
US5037223A (en) * 1980-10-31 1991-08-06 Canon Kabushiki Kaisha Serial printing apparatus with controllable pitch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5298805B2 (en) * 2008-11-25 2013-09-25 セイコーエプソン株式会社 Recording apparatus and recording method in recording apparatus
WO2017134908A1 (en) 2016-02-05 2017-08-10 株式会社 東芝 Sensor failure diagnosis device, method and program

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1294622A (en) * 1913-11-18 1919-02-18 Underwood Typewriter Co Type-writing machine.
US2659472A (en) * 1949-12-28 1953-11-17 Standard Register Co Strip feeding mechanism
US2747717A (en) * 1954-12-23 1956-05-29 Ibm Paper feeding device
US2831561A (en) * 1954-04-28 1958-04-22 Burroughs Corp Selective control for sheet feeding apparatus
US3094261A (en) * 1961-01-09 1963-06-18 Ibm Tape carriage control
US3272303A (en) * 1965-02-10 1966-09-13 Pohl Carl Typewriter control apparatus
US3280957A (en) * 1963-10-17 1966-10-25 Robert I Thiel Variable line spacing device for typewriters
US3326348A (en) * 1964-12-29 1967-06-20 Ibm Variable indexing apparatus
US3354816A (en) * 1966-09-19 1967-11-28 Ibm Line printer with proportional spacing control means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL273359A (en) * 1961-01-12
US3343131A (en) * 1964-12-31 1967-09-19 Ibm Printer control apparatus including code modification means
US3312174A (en) * 1965-12-23 1967-04-04 Ibm Variable cycle control system for a high speed printer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1294622A (en) * 1913-11-18 1919-02-18 Underwood Typewriter Co Type-writing machine.
US2659472A (en) * 1949-12-28 1953-11-17 Standard Register Co Strip feeding mechanism
US2831561A (en) * 1954-04-28 1958-04-22 Burroughs Corp Selective control for sheet feeding apparatus
US2747717A (en) * 1954-12-23 1956-05-29 Ibm Paper feeding device
US3094261A (en) * 1961-01-09 1963-06-18 Ibm Tape carriage control
US3280957A (en) * 1963-10-17 1966-10-25 Robert I Thiel Variable line spacing device for typewriters
US3326348A (en) * 1964-12-29 1967-06-20 Ibm Variable indexing apparatus
US3272303A (en) * 1965-02-10 1966-09-13 Pohl Carl Typewriter control apparatus
US3354816A (en) * 1966-09-19 1967-11-28 Ibm Line printer with proportional spacing control means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026405A (en) * 1972-11-09 1977-05-31 Compagnie Honeywell Bull (Societe Anonyme) Process and apparatus for determining the magnitude of the paper advance commanded in a printing machine
US3888340A (en) * 1973-06-01 1975-06-10 Burroughs Corp Variable pitch tapeless format control system for line printers
US3857471A (en) * 1973-09-12 1974-12-31 Burroughs Corp Tapeless paper motion control system providing sensing circuits to govern motor incrementing
US4311399A (en) * 1977-02-09 1982-01-19 Sycor, Inc. Method and apparatus for setting and varying margins and line spacing on data printers
US5037223A (en) * 1980-10-31 1991-08-06 Canon Kabushiki Kaisha Serial printing apparatus with controllable pitch
US5108203A (en) * 1980-10-31 1992-04-28 Canon Kabushiki Kaisha Printing apparatus including error correction and memory means, for printing vertical and horizontal form lines
US4772142A (en) * 1984-12-17 1988-09-20 Canon Kabushiki Kaisha Document processing system

Also Published As

Publication number Publication date
NL6905593A (en) 1969-11-18
ES367238A1 (en) 1971-04-01
SE349879B (en) 1972-10-09
DE1920491B2 (en) 1979-10-31
CH483675A (en) 1969-12-31
DE1920491C3 (en) 1980-07-24
JPS5025776B1 (en) 1975-08-26
DE1920491A1 (en) 1969-11-20
GB1246707A (en) 1971-09-15
BE732353A (en) 1969-10-30
FR2014129A6 (en) 1970-04-17

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