JPS57156269A - Ink jet recording device - Google Patents

Ink jet recording device

Info

Publication number
JPS57156269A
JPS57156269A JP3935881A JP3935881A JPS57156269A JP S57156269 A JPS57156269 A JP S57156269A JP 3935881 A JP3935881 A JP 3935881A JP 3935881 A JP3935881 A JP 3935881A JP S57156269 A JPS57156269 A JP S57156269A
Authority
JP
Japan
Prior art keywords
high voltage
voltage
amplifier
difference
point
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
JP3935881A
Other languages
Japanese (ja)
Inventor
Kaoru Yoshida
Hideyuki Omori
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3935881A priority Critical patent/JPS57156269A/en
Publication of JPS57156269A publication Critical patent/JPS57156269A/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
    • 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

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

Abstract

PURPOSE:To detect a signal corresponding to a difference in voltage between the normal state and the high voltage down state by a device wherein an amplifier for the signal detecting the down in high voltage applied to deflecting electrodes is provided with a transmission delay circuit, and the amplifier issuing output corresponding to the difference between output voltages from a delay circuit and the former amplifier is connected thereto. CONSTITUTION:Voltage across a resistor 25 through which the primary current of a high voltage source 1 passes is amplified by an amplifier 26. When there occurs a high voltage down at time t1, voltage at point (a) varies from V5 to V4 as shown by A. At point (b), voltage V7 varies slowly of V6 under the charging action due to a resistor R10 and a capacitor C1, as shown by B. With resistance values R11 and R13 having the relationship of R11=R13, an amplifier 30 issues output in the inverted form of variation at the point (a), as shown by C. Then, this variation output is fed to a comparator 28 and reference input -V8 is set about -V9/2, so that voltage at the point (a) becomes to have a high level only for a period from t1 to t2, as shown by D. Since only a difference in the primary current of the high voltage source 1 between the normal state and the high voltage down state of a deflecting electrode 3, such difference will not subject to substantial variations even under variations in absolute value of the detected voltage. As a result, a high voltage down can be detected positively.
JP3935881A 1981-03-20 1981-03-20 Ink jet recording device Pending JPS57156269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3935881A JPS57156269A (en) 1981-03-20 1981-03-20 Ink jet recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3935881A JPS57156269A (en) 1981-03-20 1981-03-20 Ink jet recording device

Publications (1)

Publication Number Publication Date
JPS57156269A true JPS57156269A (en) 1982-09-27

Family

ID=12550844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3935881A Pending JPS57156269A (en) 1981-03-20 1981-03-20 Ink jet recording device

Country Status (1)

Country Link
JP (1) JPS57156269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60262662A (en) * 1984-06-12 1985-12-26 Hitachi Seiko Ltd Ink jet recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60262662A (en) * 1984-06-12 1985-12-26 Hitachi Seiko Ltd Ink jet recorder

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