GB1112692A - Improvements in or relating to electrographical printing or recording devices - Google Patents

Improvements in or relating to electrographical printing or recording devices

Info

Publication number
GB1112692A
GB1112692A GB3917665A GB3917665A GB1112692A GB 1112692 A GB1112692 A GB 1112692A GB 3917665 A GB3917665 A GB 3917665A GB 3917665 A GB3917665 A GB 3917665A GB 1112692 A GB1112692 A GB 1112692A
Authority
GB
United Kingdom
Prior art keywords
potential
printing
switches
printing electrodes
electrodes
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
GB3917665A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1112692A publication Critical patent/GB1112692A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
    • G03G15/321—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by charge transfer onto the recording material in accordance with the image
    • G03G15/325—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by charge transfer onto the recording material in accordance with the image using a stylus or a multi-styli array

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

1,112,692. Selective printing. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Sept., 1965 [7 Sept., 1964], No. 39176/65. Heading B6F. In an electrostatic printer having a wire matrix printing head and in which the surface of a record medium 6 is charged by the potential between printing electrodes 1 and counterelectrode 5, the printing electrodes 1 are connected through two dipoles 7, 7<SP>1</SP> (which may be replaced by resistances or capacitors) to respective potential switches 3, 4 so that when both potential switches are closed 3-P1 and 4-P1 the effective potential exceeds the threshold value for initiating a gas discharge to produce a record mark on the record medium, whereas, when only one of the switches 3 or 4 is connected the potential does not attain the threshold value and constitutes a bias value. A third dipole, an electrical resistor 9, may be connected to the printing electrodes and is maintained at a fixed potential. The printing electrodes in an a x b matrix head are connected to their respective dipoles through a number of a + b potential switches.
GB3917665A 1964-09-17 1965-09-14 Improvements in or relating to electrographical printing or recording devices Expired GB1112692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0035086 1964-09-17

Publications (1)

Publication Number Publication Date
GB1112692A true GB1112692A (en) 1968-05-08

Family

ID=7374033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3917665A Expired GB1112692A (en) 1964-09-17 1965-09-14 Improvements in or relating to electrographical printing or recording devices

Country Status (5)

Country Link
BE (1) BE669719A (en)
CH (1) CH436992A (en)
DE (1) DE1448908A1 (en)
GB (1) GB1112692A (en)
NL (1) NL6511917A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624661A (en) * 1969-05-14 1971-11-30 Honeywell Inc Electrographic printing system with plural staggered electrode rows
US3946403A (en) * 1973-06-13 1976-03-23 Tokyo Shibaura Electric Co., Ltd. Electrostatic recorder with three state switching
US4359753A (en) * 1978-12-21 1982-11-16 Xerox Corporation Maintaining Paschen breakdown voltage in electrographic printing
DE3138586C2 (en) * 1981-09-29 1986-01-02 ANT Nachrichtentechnik GmbH, 7150 Backnang Circuit arrangement in an electro-sensitive writing unit

Also Published As

Publication number Publication date
BE669719A (en)
NL6511917A (en) 1966-03-18
CH436992A (en) 1967-05-31
DE1448908A1 (en) 1968-12-05

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