JPS63112155A - Ink jet printer - Google Patents

Ink jet printer

Info

Publication number
JPS63112155A
JPS63112155A JP25703586A JP25703586A JPS63112155A JP S63112155 A JPS63112155 A JP S63112155A JP 25703586 A JP25703586 A JP 25703586A JP 25703586 A JP25703586 A JP 25703586A JP S63112155 A JPS63112155 A JP S63112155A
Authority
JP
Japan
Prior art keywords
ink
foreign matter
nozzle
orifice
opened
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
JP25703586A
Inventor
Yoshio Koide
Hideki Yamashita
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP25703586A priority Critical patent/JPS63112155A/en
Publication of JPS63112155A publication Critical patent/JPS63112155A/en
Application status is Pending legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517Cleaning of print head nozzles
    • B41J2/1652Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head

Abstract

PURPOSE:To prevent lowering of printing operation efficiency due to cleaning of the head, by coupling an ink tube for discharging ink in an ink nozzle to the ink nozzle and when an orifice of the ink nozzle is clogged with a foreign matter, providing negative pressure in the ink nozzle and floating the foreign matter from the orifice then discharging together with the ink. CONSTITUTION:Upon throw-in of power source, an ink pressurizing pump 2 is operated to produce a proper pressure. When an ink supply valve 7 is opened, ink particles are ejected through an ink nozzle 10 to enable printing. Upon reception of a command for removing foreign matter from an orifice 11, the ink supply valve is closed to provide a negative pressure in the ink nozzle 10 by means of a pressure changing device 28, or positive and negative pressures are fed repeatedly and periodically so as to float a foreign matter clogged at the orifice 11 at the tip of the ink nozzle 10. When an ink discharge valve 13 is opened then the ink supply valve 7 is opened, the floating foreign matter is discharged together with the ink being supplied to an ink tank 25.
JP25703586A 1986-10-30 1986-10-30 Ink jet printer Pending JPS63112155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25703586A JPS63112155A (en) 1986-10-30 1986-10-30 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25703586A JPS63112155A (en) 1986-10-30 1986-10-30 Ink jet printer

Publications (1)

Publication Number Publication Date
JPS63112155A true JPS63112155A (en) 1988-05-17

Family

ID=17300837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25703586A Pending JPS63112155A (en) 1986-10-30 1986-10-30 Ink jet printer

Country Status (1)

Country Link
JP (1) JPS63112155A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543907B2 (en) 1999-04-08 2009-06-09 Seiko Epson Corporation Ink jet recording apparatus and cleaning control method for recording head incorporated therein

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814760A (en) * 1981-07-17 1983-01-27 Seiko Epson Corp Ink jet recorder
JPS59123672A (en) * 1982-12-28 1984-07-17 Canon Inc Liquid jet recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814760A (en) * 1981-07-17 1983-01-27 Seiko Epson Corp Ink jet recorder
JPS59123672A (en) * 1982-12-28 1984-07-17 Canon Inc Liquid jet recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543907B2 (en) 1999-04-08 2009-06-09 Seiko Epson Corporation Ink jet recording apparatus and cleaning control method for recording head incorporated therein

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