JPS5617266A - Ink jet printer - Google Patents

Ink jet printer

Info

Publication number
JPS5617266A
JPS5617266A JP9159079A JP9159079A JPS5617266A JP S5617266 A JPS5617266 A JP S5617266A JP 9159079 A JP9159079 A JP 9159079A JP 9159079 A JP9159079 A JP 9159079A JP S5617266 A JPS5617266 A JP S5617266A
Authority
JP
Japan
Prior art keywords
ink
exciting
signal
pulsation
fed
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
JP9159079A
Other languages
Japanese (ja)
Inventor
Isokazu Furukawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP9159079A priority Critical patent/JPS5617266A/en
Publication of JPS5617266A publication Critical patent/JPS5617266A/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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/02—Ink jet characterised by the jet generation process generating a continuous ink jet
    • B41J2/025—Ink jet characterised by the jet generation process generating a continuous ink jet by vibration

Landscapes

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

Abstract

PURPOSE:To provide the titled printer reduced in size and cost wherein the pulsation of ink pressure is reduced by a novel electrical feed-back system. CONSTITUTION:Ink from an ink tank 9 is fed under pressure by a pump 17, and jetted from an ink jet head 1 by the pressure created by a piezoelectric vibrator 3. Ink droplets 8 are electrically charged by a charging power source 10, deflected by a deflecting electrode 11 for printing on recording paper 7. In this case, only the ink pulsation component is selected by vibrations such as ink pulsation fed from the pump 17 and exciting vibration fed from the piezoelectric vibrator 3 and is amplified, the selection and amplification being conducted by a band discriminator-amplifier 13 connected in series, the exciting signal is inputted to a phase or frequency modulator 15, where the signal is compared with an exciting signal fed from an exciting-signal generator 14 and is modulated, while the modulated signal is amplified by an amplifier 16, the resulting signal is used for exciting an exciting piezoelectric vibrator 2 to eliminate only the ink pulsation. Accordingly, a bulky accumulator is unnecessitated in said system.
JP9159079A 1979-07-20 1979-07-20 Ink jet printer Pending JPS5617266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9159079A JPS5617266A (en) 1979-07-20 1979-07-20 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9159079A JPS5617266A (en) 1979-07-20 1979-07-20 Ink jet printer

Publications (1)

Publication Number Publication Date
JPS5617266A true JPS5617266A (en) 1981-02-19

Family

ID=14030757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9159079A Pending JPS5617266A (en) 1979-07-20 1979-07-20 Ink jet printer

Country Status (1)

Country Link
JP (1) JPS5617266A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208063A (en) * 1982-05-25 1983-12-03 Yokogawa Hokushin Electric Corp Ink jet head
EP0624468A2 (en) * 1993-05-12 1994-11-17 SCITEX DIGITAL PRINTING, Inc. Improved ink jet stimulation monitoring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208063A (en) * 1982-05-25 1983-12-03 Yokogawa Hokushin Electric Corp Ink jet head
EP0624468A2 (en) * 1993-05-12 1994-11-17 SCITEX DIGITAL PRINTING, Inc. Improved ink jet stimulation monitoring
EP0624468A3 (en) * 1993-05-12 1995-06-21 Scitex Digital Printing Inc Improved ink jet stimulation monitoring.

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