JPS56118869A - Controlling method for dropletizing distance in ink jet printer - Google Patents

Controlling method for dropletizing distance in ink jet printer

Info

Publication number
JPS56118869A
JPS56118869A JP2204380A JP2204380A JPS56118869A JP S56118869 A JPS56118869 A JP S56118869A JP 2204380 A JP2204380 A JP 2204380A JP 2204380 A JP2204380 A JP 2204380A JP S56118869 A JPS56118869 A JP S56118869A
Authority
JP
Japan
Prior art keywords
variations
pressure
ink
dropletizing
distance
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
JP2204380A
Other languages
Japanese (ja)
Inventor
Yutaka Ebi
Masanori Horiie
Kyuhachiro Iwasaki
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 JP2204380A priority Critical patent/JPS56118869A/en
Publication of JPS56118869A publication Critical patent/JPS56118869A/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
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/115—Ink jet characterised by jet control synchronising the droplet separation and charging time

Landscapes

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

Abstract

PURPOSE:To restrict variations of the dropletizing distance for ink threads and variations of the amount of charge on each droplets to within respective allowable ranges by a method wherein only the high-frequency component by variations of pressure in an ink tank is detected by a pressure sensor and the pressure variations are restricted to within an allowable range by controlling an excitation voltage for and electrostrictive vibrator. CONSTITUTION:Only the high-frequency component of the variations of pressure in the ink chamber 1' is detected by the pressure sensor 7 and a pressure detection circuit 8, and a comparison circuit 9 discriminates whether the pressure variations are within the allowable range or not. In the latter case, the output voltage of an excitation circuit 10, i.e., the excitation voltage for the electrostrictive vibrator 2 is changed to control the pressure variations in the chamber 1' to within the allowable range. Accordingly, the variations of the dropletizing distance for cutting the ink threads 5 discharged from the nozzles 3 into ink droplets 6 and also the corresponding variations of the amount of charge on each droplet can be controlled to within the respective allowable ranges. As a result, even when the foams penetrate into the chamber 1', it is possible to restrict the variations of charge on each of the droplets 6 and to obtain an image of high quality.
JP2204380A 1980-02-23 1980-02-23 Controlling method for dropletizing distance in ink jet printer Pending JPS56118869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2204380A JPS56118869A (en) 1980-02-23 1980-02-23 Controlling method for dropletizing distance in ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2204380A JPS56118869A (en) 1980-02-23 1980-02-23 Controlling method for dropletizing distance in ink jet printer

Publications (1)

Publication Number Publication Date
JPS56118869A true JPS56118869A (en) 1981-09-18

Family

ID=12071905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2204380A Pending JPS56118869A (en) 1980-02-23 1980-02-23 Controlling method for dropletizing distance in ink jet printer

Country Status (1)

Country Link
JP (1) JPS56118869A (en)

Cited By (1)

* 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

Cited By (1)

* 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

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