JPS5565563A - Ink jet head driving circuit - Google Patents

Ink jet head driving circuit

Info

Publication number
JPS5565563A
JPS5565563A JP13845278A JP13845278A JPS5565563A JP S5565563 A JPS5565563 A JP S5565563A JP 13845278 A JP13845278 A JP 13845278A JP 13845278 A JP13845278 A JP 13845278A JP S5565563 A JPS5565563 A JP S5565563A
Authority
JP
Japan
Prior art keywords
vibrator
pulse
electrostrictive
transistor
positive
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
JP13845278A
Other languages
Japanese (ja)
Inventor
Takuo Isayama
Hiroshi Yamazaki
Hiromichi Komai
Tsutomu Sato
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 JP13845278A priority Critical patent/JPS5565563A/en
Publication of JPS5565563A publication Critical patent/JPS5565563A/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
    • B41J2/04—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
    • B41J2/04518—Control methods or devices therefor, e.g. driver circuits, control circuits reducing costs
    • 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
    • B41J2/04541—Specific driving circuit
    • 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
    • B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements

Landscapes

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

Abstract

PURPOSE:To reduce the cost and simplify the circuitry by alternately applying positive and negative voltages to an electrostrictive vibrator with a single pole power source alone with the vibrator connected between differential transistors. CONSTITUTION:When a driving positive pulse P is applied on a transistor 21 and a monomultivibrator 27, a high positive voltage works on an electrostrictive vibrator 26 to cause an electrostrictive vibrator 4 to be deformed in the direction in which the volume of ink liquid chamber 2 increases thereby absorbing ink. On the other hand, a vibrator 27 produces an output pulse M1, which triggers a vibrator 28 to generate an output pulse M2. The pulse M2 comes to turn on a transistor 22. At this point, the transistor is off, a high positive voltage works on the vibrator 26 in the direction of polarization. Therefore, the electrostrictive vibrator 4 is deformed in the direction in which the volume of the ink liquid chamber 2 decreases. Thus, ink drops are caused to jet. Due to a unidirectional drive pulse P, positive and negative pulses are applied on the electrostrictive vibrator 4.
JP13845278A 1978-11-10 1978-11-10 Ink jet head driving circuit Pending JPS5565563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13845278A JPS5565563A (en) 1978-11-10 1978-11-10 Ink jet head driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13845278A JPS5565563A (en) 1978-11-10 1978-11-10 Ink jet head driving circuit

Publications (1)

Publication Number Publication Date
JPS5565563A true JPS5565563A (en) 1980-05-17

Family

ID=15222332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13845278A Pending JPS5565563A (en) 1978-11-10 1978-11-10 Ink jet head driving circuit

Country Status (1)

Country Link
JP (1) JPS5565563A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100572070C (en) 2006-05-26 2009-12-23 Icf科技有限公司 Ink-jet head driving method with piezo-activator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100572070C (en) 2006-05-26 2009-12-23 Icf科技有限公司 Ink-jet head driving method with piezo-activator

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