JPS5565561A - Ink jet head driving system - Google Patents

Ink jet head driving system

Info

Publication number
JPS5565561A
JPS5565561A JP7778578A JP7778578A JPS5565561A JP S5565561 A JPS5565561 A JP S5565561A JP 7778578 A JP7778578 A JP 7778578A JP 7778578 A JP7778578 A JP 7778578A JP S5565561 A JPS5565561 A JP S5565561A
Authority
JP
Japan
Prior art keywords
pressure
chamber
drive voltage
jetting
ink
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.)
Granted
Application number
JP7778578A
Other languages
Japanese (ja)
Other versions
JPS592618B2 (en
Inventor
Sadao Kakefu
Hirokawa Hayashi
Hiromichi Komai
Hiroshi Yamawaki
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
Priority to DE2624778A priority Critical patent/DE2624778C3/en
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7778578A priority patent/JPS592618B2/en
Priority to US06/050,458 priority patent/US4291316A/en
Publication of JPS5565561A publication Critical patent/JPS5565561A/en
Publication of JPS592618B2 publication Critical patent/JPS592618B2/en
Expired 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
    • 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
    • G01D15/16—Recording elements transferring recording material, e.g. ink, to the recording surface
    • G01D15/18—Nozzles emitting recording material
    • 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
    • B41J2002/022—Control methods or devices for continuous ink jet

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To improve the response frequency and prevent the suction of air into the nozzle by performing the replenishment of ink to the injection pressure chamber thru the action of a bias diaphragms while the jetting of ink is made through the combination of two diaphragms. CONSTITUTION:The diagram I' of a voltage waveform driving an electrostrictive vibrator for jetting shows a process in which as the bias drive voltage rises, the capacity of a chamber 8 reduces to cause ink to discharge from the chamber 8 to the chamber 9 with a resulting rise in the pressure. This is also the suction process in which as the jetting drive voltage lowers the capacity 9 increases, causing the pressure to lower. Thus, cancelation between the rise and the drop in the pressure in the chamber 8 and the chamber 9 prevents increase in the negative pressure. In the period II', where the bias drive voltage further rises while being the discharge process, the jetting drive voltage is rising, rises in the pressure of both the chambers 8 and 9 are combined together to jet the ink drops strongly. In the period III', where the bias drive voltage rises while the jetting drive voltage falls, the rise and the drop in the pressure of the chambers 8 and 9 cancells each other thereby preventing increase in the negative pressure.
JP7778578A 1975-06-03 1978-06-27 Inkjet head driving method Expired JPS592618B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2624778A DE2624778C3 (en) 1975-06-03 1976-06-02 Ink ejection head
JP7778578A JPS592618B2 (en) 1978-06-27 1978-06-27 Inkjet head driving method
US06/050,458 US4291316A (en) 1975-06-03 1979-06-20 System for driving ink drop generator of ink-jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7778578A JPS592618B2 (en) 1978-06-27 1978-06-27 Inkjet head driving method

Publications (2)

Publication Number Publication Date
JPS5565561A true JPS5565561A (en) 1980-05-17
JPS592618B2 JPS592618B2 (en) 1984-01-19

Family

ID=13643618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7778578A Expired JPS592618B2 (en) 1975-06-03 1978-06-27 Inkjet head driving method

Country Status (1)

Country Link
JP (1) JPS592618B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57146664A (en) * 1980-12-08 1982-09-10 Yokogawa Hewlett Packard Ltd Ink droplet control device for ink jet printer
JPS592854A (en) * 1982-06-29 1984-01-09 Sanyo Electric Co Ltd Ink jet printer
US6511157B1 (en) * 1996-03-04 2003-01-28 Sharp Kabushiki Kaisha Ink jet printerhead with a plurality of nozzles and two distinct groups of filters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57146664A (en) * 1980-12-08 1982-09-10 Yokogawa Hewlett Packard Ltd Ink droplet control device for ink jet printer
JPS592854A (en) * 1982-06-29 1984-01-09 Sanyo Electric Co Ltd Ink jet printer
US6511157B1 (en) * 1996-03-04 2003-01-28 Sharp Kabushiki Kaisha Ink jet printerhead with a plurality of nozzles and two distinct groups of filters

Also Published As

Publication number Publication date
JPS592618B2 (en) 1984-01-19

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