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JPS57173167A - Ink jet recorder - Google Patents

Ink jet recorder

Info

Publication number
JPS57173167A
JPS57173167A JP4197381A JP4197381A JPS57173167A JP S57173167 A JPS57173167 A JP S57173167A JP 4197381 A JP4197381 A JP 4197381A JP 4197381 A JP4197381 A JP 4197381A JP S57173167 A JPS57173167 A JP S57173167A
Authority
JP
Japan
Prior art keywords
pulses
output
ink
circuit
drop row
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.)
Pending
Application number
JP4197381A
Other languages
Japanese (ja)
Inventor
Masayuki Makino
Kazuki Obara
Keiichi Tsuruta
Masato Kobayashi
Takeo Wada
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4197381A priority Critical patent/JPS57173167A/en
Publication of JPS57173167A publication Critical patent/JPS57173167A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/125—Sensors, e.g. deflection sensors

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To conduct printing with severe accuracy by detecting the velocity of flow of an ink-drop row from the time interval of the output pulses of an image sensor, changing supply pressure and keeping the pressure at reference value. CONSTITUTION:Ink from a supply pump 17 is injected from a nozzle 1 as the regular ink-drop row 9 through the vibration of a piezo-electric vibrator 2, and projected onto the image sensor 10 by the beams of a light emitting element 11. On the other hand, the sensor 10 synchronizes with clock pulses a by the sample pulses b of a printing control circuit 12, and outputs pulses c indicating the condition of the drop row 9 to a counter 13, an AND gate 19 opened just after the pulses b are generated and the circuit 12. A reference time generating circuit 14 outputs the pulses e of reference time width by the first output of the pulses c, a flip-flop 15 is set by the first pulses of the pulses c and reset by the output of the counter 13 counting only by fixed number, difference between the output pulses d, e is converted into voltage by a time difference comparison circuit 16, and the supply pressure of the pump 17 is changed by the voltage.
JP4197381A 1981-03-23 1981-03-23 Ink jet recorder Pending JPS57173167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4197381A JPS57173167A (en) 1981-03-23 1981-03-23 Ink jet recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4197381A JPS57173167A (en) 1981-03-23 1981-03-23 Ink jet recorder

Publications (1)

Publication Number Publication Date
JPS57173167A true JPS57173167A (en) 1982-10-25

Family

ID=12623132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4197381A Pending JPS57173167A (en) 1981-03-23 1981-03-23 Ink jet recorder

Country Status (1)

Country Link
JP (1) JPS57173167A (en)

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