JPS6464853A - Head recovery mechanism of ink jet printer - Google Patents

Head recovery mechanism of ink jet printer

Info

Publication number
JPS6464853A
JPS6464853A JP22368287A JP22368287A JPS6464853A JP S6464853 A JPS6464853 A JP S6464853A JP 22368287 A JP22368287 A JP 22368287A JP 22368287 A JP22368287 A JP 22368287A JP S6464853 A JPS6464853 A JP S6464853A
Authority
JP
Japan
Prior art keywords
ink
air
cap
sucked
head housing
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
JP22368287A
Other languages
Japanese (ja)
Inventor
Shigeru Umehara
Hisatoshi Suezaki
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP22368287A priority Critical patent/JPS6464853A/en
Publication of JPS6464853A publication Critical patent/JPS6464853A/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
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/1652—Cleaning 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
    • B41J2/16523—Waste ink transport from caps or spittoons, e.g. by suction

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ink Jet (AREA)

Abstract

PURPOSE:To enable an ink drop to be stably discharged by refreshing ink in a nozzle, by a method wherein an inlet port of an air pump is connected to a cap, and ink is sucked from a top of the nozzle during capping when required. CONSTITUTION:When a carriage 22 is moved to a stand-by position 21, a cap covers an ink drop discharge port 4 of a head housing 1 by operation of a solenoid or the like, and a small chamber 8 is formed by a seal rubber 10. For instance, when printing is started, current is at first applied to a three port solenoid valve 16, an exhaust path of an air pump 13 is opened to the air, and an air inflow path of the head housing 1 is closed. Then, current is applied to the air pump 13, and air is sucked from an air outflow port 9. Ink is sucked out from a top nozzle of a head 2 and the ink made viscous and bubbles are exhausted. Though ink penetrates into a suction tube 18, it is trapped in an ink fountain 11. After suction for a fixed time, current application to the solenoid valve 16 is cut off, and the cap 7 is separated from the head housing 1 by reverse operation of the solenoid or the like.
JP22368287A 1987-09-07 1987-09-07 Head recovery mechanism of ink jet printer Pending JPS6464853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22368287A JPS6464853A (en) 1987-09-07 1987-09-07 Head recovery mechanism of ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22368287A JPS6464853A (en) 1987-09-07 1987-09-07 Head recovery mechanism of ink jet printer

Publications (1)

Publication Number Publication Date
JPS6464853A true JPS6464853A (en) 1989-03-10

Family

ID=16801995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22368287A Pending JPS6464853A (en) 1987-09-07 1987-09-07 Head recovery mechanism of ink jet printer

Country Status (1)

Country Link
JP (1) JPS6464853A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01308641A (en) * 1988-06-07 1989-12-13 Nec Corp Recovery mechanism of head of ink-jet printer
JPH04141447A (en) * 1990-10-03 1992-05-14 Canon Inc Ink jet recording apparatus and recovery unit therefor
JPH0640026A (en) * 1992-07-24 1994-02-15 Tokyo Electric Co Ltd Ink-jet printer
JP2012158070A (en) * 2011-01-31 2012-08-23 Brother Industries Ltd Liquid discharge apparatus
RU2497683C2 (en) * 2011-02-14 2013-11-10 Кэнон Кабусики Кайся Ink-jet printer and method for restoring print head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01308641A (en) * 1988-06-07 1989-12-13 Nec Corp Recovery mechanism of head of ink-jet printer
JPH04141447A (en) * 1990-10-03 1992-05-14 Canon Inc Ink jet recording apparatus and recovery unit therefor
JPH0640026A (en) * 1992-07-24 1994-02-15 Tokyo Electric Co Ltd Ink-jet printer
JP2012158070A (en) * 2011-01-31 2012-08-23 Brother Industries Ltd Liquid discharge apparatus
RU2497683C2 (en) * 2011-02-14 2013-11-10 Кэнон Кабусики Кайся Ink-jet printer and method for restoring print head

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