US3631509A - High-speed coincident pulse electrographic printer with gray scale printing capability - Google Patents

High-speed coincident pulse electrographic printer with gray scale printing capability Download PDF

Info

Publication number
US3631509A
US3631509A US838628A US3631509DA US3631509A US 3631509 A US3631509 A US 3631509A US 838628 A US838628 A US 838628A US 3631509D A US3631509D A US 3631509DA US 3631509 A US3631509 A US 3631509A
Authority
US
United States
Prior art keywords
intensity
pulses
charge
charge image
amplitude
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 - Lifetime
Application number
US838628A
Other languages
English (en)
Inventor
Edward W Marshall
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Application granted granted Critical
Publication of US3631509A publication Critical patent/US3631509A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K15/14—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by electrographic printing, e.g. xerography; by magnetographic printing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/06—Electric recording elements, e.g. electrolytic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D9/00—Recording measured values
    • G01D9/02—Producing one or more recordings of the values of a single variable
    • G01D9/04—Producing one or more recordings of the values of a single variable with provision for multiple or alternative recording
    • G01D9/06—Multiple recording, e.g. duplicating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • 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
    • Y10S101/00—Printing
    • Y10S101/37—Printing employing electrostatic force

Definitions

  • the recording web comprises a dielectric charge retention film facing the styli, such film being supported on a conductive paper backing which makes electrical contact with the backup electrode.
  • a pulsed first writing potential is produced across the styli and the backup electrode, such first pulsed potential having a pulse amplitude and duration which is less than that which is sufficient to deposit a charge image on the recording medium but which has an amplitude and/or duration which varies in variable accordance with the density of the incremental charge image to be printed by a selective one of the styli on the recording web.
  • FIG. 4 is a schematic equivalent circuit for the electrographic recording paper
  • the pulse gated voltage derived from voltage generator 16 is combined with the pulsed voltage derived from the intensity voltage generator 13 to produce a total voltage drop across the paper which exceeds the breakdown voltage V,, of the airgap by an amount which varies in accordance with the density of the incremental charge image to be deposited upon the recording medium.
  • the pulses of charge density determinative voltage, as derived from the intensity voltage generator 13, are synchronized with the addressed styli such that the sequentially deposited incremental charge images have average charge densities in accordance with the intensity of the spectral lines to be recorded.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Fax Reproducing Arrangements (AREA)
US838628A 1969-07-02 1969-07-02 High-speed coincident pulse electrographic printer with gray scale printing capability Expired - Lifetime US3631509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83862869A 1969-07-02 1969-07-02

Publications (1)

Publication Number Publication Date
US3631509A true US3631509A (en) 1971-12-28

Family

ID=25277633

Family Applications (1)

Application Number Title Priority Date Filing Date
US838628A Expired - Lifetime US3631509A (en) 1969-07-02 1969-07-02 High-speed coincident pulse electrographic printer with gray scale printing capability

Country Status (5)

Country Link
US (1) US3631509A (enrdf_load_stackoverflow)
JP (1) JPS4831681B1 (enrdf_load_stackoverflow)
CA (1) CA930409A (enrdf_load_stackoverflow)
DE (1) DE2032848A1 (enrdf_load_stackoverflow)
GB (1) GB1304066A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740760A (en) * 1971-11-09 1973-06-19 Atomic Energy Commission Reaction end-point recorder for use with a rotary analytical photometer
US3818492A (en) * 1970-11-13 1974-06-18 Canon Kk Recording of information in bit form
US3830967A (en) * 1973-02-05 1974-08-20 Muirhead Inc Apparatus for half tone marking electrostatic paper
DE2418632A1 (de) * 1974-04-18 1975-11-06 Philips Patentverwaltung Verfahren und einrichtung zum elektrostatischen drucken
US3961574A (en) * 1975-01-15 1976-06-08 Horizons Incorporated Electrostatic bar code printer
US3964388A (en) * 1974-03-04 1976-06-22 The Carter's Ink Company Method and apparatus for high speed non-impact printing with shade-of-grey control
US4123312A (en) * 1976-09-24 1978-10-31 Automation Industrielle Sa Apparatus for producing collapsible containers
US4124854A (en) * 1975-02-27 1978-11-07 Varian Associates, Inc. Electrostatic recorder with a recording head which floats on a fluid cushion
US4290076A (en) * 1979-03-19 1981-09-15 Xerox Corporation Compensatory means improving the operation of electrostatic printers
EP0090058A1 (de) * 1982-03-25 1983-10-05 Ibm Deutschland Gmbh Transistorschaltung zum Schalten des Schreibstromes bei einem Metallpapierdrucker und zum selbsttätigen Verringern des Schreibstromes nach dem Zünden des Lichtbogens
US4415914A (en) * 1981-06-30 1983-11-15 International Business Machines Corporation Gray scale electrostatic recording system and a stylus driver therefor
US4828407A (en) * 1987-05-29 1989-05-09 Sanders Associates, Inc. Circuit for improving the resolution in electrostatic printers
US5189441A (en) * 1990-05-02 1993-02-23 Minolta Camera Kabushiki Kaisha Image forming apparatus having density control
US20040158592A1 (en) * 2000-08-04 2004-08-12 Nikitin Alexei V. Method and apparatus for analysis of variables

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018744A1 (de) * 1980-05-16 1981-11-26 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Registrieranordnung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076968A (en) * 1957-09-12 1963-02-05 Xerox Corp Electrostatically recording plurality of signal bits simultaneously
US3182333A (en) * 1961-12-27 1965-05-04 Nippon Telegraph & Telephone Electrostatic high speed printer
US3188649A (en) * 1960-06-23 1965-06-08 Preisinger Max Electrostatic printer apparatus
US3208076A (en) * 1960-05-05 1965-09-21 Xerox Corp Electrostatic printer
US3298030A (en) * 1965-07-12 1967-01-10 Clevite Corp Electrically operated character printer
US3469028A (en) * 1965-07-05 1969-09-23 Tokyo Shibaura Electric Co Electrode control systems of a multineedle electrode type electrostatic recording device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076968A (en) * 1957-09-12 1963-02-05 Xerox Corp Electrostatically recording plurality of signal bits simultaneously
US3208076A (en) * 1960-05-05 1965-09-21 Xerox Corp Electrostatic printer
US3188649A (en) * 1960-06-23 1965-06-08 Preisinger Max Electrostatic printer apparatus
US3182333A (en) * 1961-12-27 1965-05-04 Nippon Telegraph & Telephone Electrostatic high speed printer
US3469028A (en) * 1965-07-05 1969-09-23 Tokyo Shibaura Electric Co Electrode control systems of a multineedle electrode type electrostatic recording device
US3298030A (en) * 1965-07-12 1967-01-10 Clevite Corp Electrically operated character printer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818492A (en) * 1970-11-13 1974-06-18 Canon Kk Recording of information in bit form
US3740760A (en) * 1971-11-09 1973-06-19 Atomic Energy Commission Reaction end-point recorder for use with a rotary analytical photometer
US3830967A (en) * 1973-02-05 1974-08-20 Muirhead Inc Apparatus for half tone marking electrostatic paper
US3964388A (en) * 1974-03-04 1976-06-22 The Carter's Ink Company Method and apparatus for high speed non-impact printing with shade-of-grey control
DE2418632A1 (de) * 1974-04-18 1975-11-06 Philips Patentverwaltung Verfahren und einrichtung zum elektrostatischen drucken
US3961574A (en) * 1975-01-15 1976-06-08 Horizons Incorporated Electrostatic bar code printer
US4124854A (en) * 1975-02-27 1978-11-07 Varian Associates, Inc. Electrostatic recorder with a recording head which floats on a fluid cushion
US4123312A (en) * 1976-09-24 1978-10-31 Automation Industrielle Sa Apparatus for producing collapsible containers
US4290076A (en) * 1979-03-19 1981-09-15 Xerox Corporation Compensatory means improving the operation of electrostatic printers
US4415914A (en) * 1981-06-30 1983-11-15 International Business Machines Corporation Gray scale electrostatic recording system and a stylus driver therefor
EP0090058A1 (de) * 1982-03-25 1983-10-05 Ibm Deutschland Gmbh Transistorschaltung zum Schalten des Schreibstromes bei einem Metallpapierdrucker und zum selbsttätigen Verringern des Schreibstromes nach dem Zünden des Lichtbogens
US4575740A (en) * 1982-03-25 1986-03-11 International Business Machines Corporation Transistor circuit for reducing current after ignition in a metal paper printer
US4828407A (en) * 1987-05-29 1989-05-09 Sanders Associates, Inc. Circuit for improving the resolution in electrostatic printers
US5189441A (en) * 1990-05-02 1993-02-23 Minolta Camera Kabushiki Kaisha Image forming apparatus having density control
US20040158592A1 (en) * 2000-08-04 2004-08-12 Nikitin Alexei V. Method and apparatus for analysis of variables
US7133568B2 (en) * 2000-08-04 2006-11-07 Nikitin Alexei V Method and apparatus for analysis of variables
US7242808B2 (en) * 2000-08-04 2007-07-10 Nikitin Alexei V Method and apparatus for analysis of variables

Also Published As

Publication number Publication date
DE2032848A1 (de) 1971-01-07
CA930409A (en) 1973-07-17
JPS4831681B1 (enrdf_load_stackoverflow) 1973-10-01
GB1304066A (enrdf_load_stackoverflow) 1973-01-24

Similar Documents

Publication Publication Date Title
US3631509A (en) High-speed coincident pulse electrographic printer with gray scale printing capability
US3846800A (en) Ink jet recording method and apparatus
US4155093A (en) Method and apparatus for generating charged particles
US3430254A (en) Tesi printing with flexible electrode on endless belt
US3810194A (en) Liquid jet printer having a droplet detecting device
US4588997A (en) Electrographic writing head
DE3881010T2 (de) Verfahren und vorrichtung zum tintenstrahldrucken.
US3208076A (en) Electrostatic printer
US3182591A (en) Image forming apparatus and method
US3662396A (en) Electrographic recording system
JPS6226219B2 (enrdf_load_stackoverflow)
US3196451A (en) Electrostatic writing system utilizing tapped delay lines
US3188649A (en) Electrostatic printer apparatus
US3528073A (en) Trapezoidal-waveform drive method and apparatus for electrographic recording
US3131256A (en) Electrostatic-writing system
US3449753A (en) Apparatus for controlling contrast in electrostatic printers
US3469028A (en) Electrode control systems of a multineedle electrode type electrostatic recording device
US3484791A (en) High resolution electrostatic recording method and apparatus
US6043830A (en) Apparatus for pattern generation on a dielectric substrate
US3986189A (en) Dielectrographic recording apparatus and method
US3480963A (en) Command responsive multi-channel electrostatic recorder
US3130411A (en) Electronic recorder
EP0068126B1 (en) Electrostatic recording system and a stylus driver therefor
US3235874A (en) Electrostatic printer utilizing an array of mutually insulated pin electrodes
US3453452A (en) Trapezoidal-waveform drive method and apparatus