JPS57121773A - Ink jet head driving circuit - Google Patents

Ink jet head driving circuit

Info

Publication number
JPS57121773A
JPS57121773A JP826481A JP826481A JPS57121773A JP S57121773 A JPS57121773 A JP S57121773A JP 826481 A JP826481 A JP 826481A JP 826481 A JP826481 A JP 826481A JP S57121773 A JPS57121773 A JP S57121773A
Authority
JP
Japan
Prior art keywords
becomes
time
piezoelectric element
ink jet
jet head
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
JP826481A
Other languages
Japanese (ja)
Other versions
JPH0250867B2 (en
Inventor
Hiroshi Takeda
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.)
SHINSHIYUU SEIKI KK
Seiko Epson Corp
Epson Corp
Original Assignee
SHINSHIYUU SEIKI KK
Seiko Epson Corp
Epson Corp
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 SHINSHIYUU SEIKI KK, Seiko Epson Corp, Epson Corp filed Critical SHINSHIYUU SEIKI KK
Priority to JP826481A priority Critical patent/JPS57121773A/en
Publication of JPS57121773A publication Critical patent/JPS57121773A/en
Publication of JPH0250867B2 publication Critical patent/JPH0250867B2/ja
Granted 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
    • B41J2/04541—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 obtain a driving citcuit of an on-demand type ink jet head which is capable of applying the voltage in the same direction as polarization voltage, to a piezoelectric element being an electric-to-mechanical converting means. CONSTITUTION:Before the time t1, all TRs are off, a piezoelectric element 2 is charged with voltage VH, and the head is in a holding state. At the time of t1, TR 7 becomes on and charge of the piezoelectric element 2 is discharged. At the time of t2, the TR 7 becomes off, TR 5 becomes on, and TR 6 is interlocked and becomes on, too. As a result, the piezoelectric element 2 is charged suddenly. In this case, capacity of a pressure room is decreased suddenly and an ink drop is jetted from the nozzle. On the other hand, the TR 5 becomes an off state at the time of t3 after the time T2 of several times of a time constant decided by R4XC has passed, and the TR 6 also becomes off in succession and becomes a holding state.
JP826481A 1981-01-22 1981-01-22 Ink jet head driving circuit Granted JPS57121773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP826481A JPS57121773A (en) 1981-01-22 1981-01-22 Ink jet head driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP826481A JPS57121773A (en) 1981-01-22 1981-01-22 Ink jet head driving circuit

Publications (2)

Publication Number Publication Date
JPS57121773A true JPS57121773A (en) 1982-07-29
JPH0250867B2 JPH0250867B2 (en) 1990-11-05

Family

ID=11688287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP826481A Granted JPS57121773A (en) 1981-01-22 1981-01-22 Ink jet head driving circuit

Country Status (1)

Country Link
JP (1) JPS57121773A (en)

Also Published As

Publication number Publication date
JPH0250867B2 (en) 1990-11-05

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