JPS5563271A - Method of and apparatus for detecting condition of ink injection - Google Patents

Method of and apparatus for detecting condition of ink injection

Info

Publication number
JPS5563271A
JPS5563271A JP13542978A JP13542978A JPS5563271A JP S5563271 A JPS5563271 A JP S5563271A JP 13542978 A JP13542978 A JP 13542978A JP 13542978 A JP13542978 A JP 13542978A JP S5563271 A JPS5563271 A JP S5563271A
Authority
JP
Japan
Prior art keywords
ink
condition
nozzle
detection probe
drops
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
JP13542978A
Other languages
Japanese (ja)
Inventor
Hiroshi Yamazaki
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 JP13542978A priority Critical patent/JPS5563271A/en
Publication of JPS5563271A publication Critical patent/JPS5563271A/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
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16579—Detection means therefor, e.g. for nozzle clogging

Landscapes

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

Abstract

PURPOSE:To make it possible to detect the condition of ink injection instantaneously and accurately for an ink jet printing equpment by arranging a detection probe into the ink column before the ink injected from a nozzle separates into drops. CONSTITUTION:Ink is injected under the pressure from a nozzle while the nozzle is being vibrated with a vibrator thereby forming ink drops. Then, the ink drops are deflected according to the printing signal to effect a printing on the recording medium. In an apparatus of such a type, in an attempt to detect the condition of ink injection, a detection probe mounted inside a tube 4 is set at the very tip of the ink column 7. Thus, a series electric circuit comprising an ink jet head 1, the ink column 7 and the detection probe 6 is formed. Based on changes in the impedance of the electric circuit, the condition of ink injection is instantaneously detected with an impedance measuring device.
JP13542978A 1978-11-02 1978-11-02 Method of and apparatus for detecting condition of ink injection Pending JPS5563271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13542978A JPS5563271A (en) 1978-11-02 1978-11-02 Method of and apparatus for detecting condition of ink injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13542978A JPS5563271A (en) 1978-11-02 1978-11-02 Method of and apparatus for detecting condition of ink injection

Publications (1)

Publication Number Publication Date
JPS5563271A true JPS5563271A (en) 1980-05-13

Family

ID=15151512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13542978A Pending JPS5563271A (en) 1978-11-02 1978-11-02 Method of and apparatus for detecting condition of ink injection

Country Status (1)

Country Link
JP (1) JPS5563271A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571773A (en) * 1980-06-06 1982-01-06 Canon Inc Ink jet recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571773A (en) * 1980-06-06 1982-01-06 Canon Inc Ink jet recorder

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