JPS5633960A - Ink injector - Google Patents

Ink injector

Info

Publication number
JPS5633960A
JPS5633960A JP10902479A JP10902479A JPS5633960A JP S5633960 A JPS5633960 A JP S5633960A JP 10902479 A JP10902479 A JP 10902479A JP 10902479 A JP10902479 A JP 10902479A JP S5633960 A JPS5633960 A JP S5633960A
Authority
JP
Japan
Prior art keywords
solvent
head
ink
bubble
detects
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
JP10902479A
Other languages
Japanese (ja)
Inventor
Takuo Isayama
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 JP10902479A priority Critical patent/JPS5633960A/en
Publication of JPS5633960A publication Critical patent/JPS5633960A/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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/19—Ink jet characterised by ink handling for removing air bubbles

Landscapes

  • Ink Jet (AREA)

Abstract

PURPOSE:To easily remove a bubble in a head, by a method wherein, when the bubble in the head is detected, the bubble is expelled by replacing ink in the head with a solvent, and the solvent is then replaced with ink. CONSTITUTION:When a bubble detector 14 (for example, which detects a change in a motional impedance in an ink liquid chamber by observing it through an electric distortion vibrator 2) detects a bubble 7 existing at the inside of an ink-on- demand type ink jet head 10, the ink in the head 10 is pulled back to a switch valve 13 with a control circuit 15 actuated. An ink feed path of the switch valve 13 is closed off, and a solvent feed path is opened, whereby the solvent is supplied from a solvent feeder 11 to fill the head 10 with the solvent. After the switch 13 is changed over to an ink feeder (12) side and injection of the solvent in the head is then completed, the head is restored to a normal condition. The solvent is preferably the one having a surface tension of below 25 d y n e/cm, for example, ethyl alcohol and the like.
JP10902479A 1979-08-29 1979-08-29 Ink injector Pending JPS5633960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10902479A JPS5633960A (en) 1979-08-29 1979-08-29 Ink injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10902479A JPS5633960A (en) 1979-08-29 1979-08-29 Ink injector

Publications (1)

Publication Number Publication Date
JPS5633960A true JPS5633960A (en) 1981-04-04

Family

ID=14499658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10902479A Pending JPS5633960A (en) 1979-08-29 1979-08-29 Ink injector

Country Status (1)

Country Link
JP (1) JPS5633960A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607934U (en) * 1983-06-27 1985-01-19 芝浦メカトロニクス株式会社 Multi-axis bolt tightening machine
JPS607632U (en) * 1983-06-27 1985-01-19 株式会社東芝 Busbar switching device
JPS60190362A (en) * 1984-03-13 1985-09-27 Fujitsu Ltd Inkjet head
EP0819529A2 (en) * 1996-07-09 1998-01-21 Canon Kabushiki Kaisha Method for preserving a liquid-ejection head, and liquid-ejection apparatus
CN115593115A (en) * 2022-11-28 2023-01-13 季华实验室（Cn） Printing nozzle bubble discharge method and device and computer readable storage medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607934U (en) * 1983-06-27 1985-01-19 芝浦メカトロニクス株式会社 Multi-axis bolt tightening machine
JPS607632U (en) * 1983-06-27 1985-01-19 株式会社東芝 Busbar switching device
JPS60190362A (en) * 1984-03-13 1985-09-27 Fujitsu Ltd Inkjet head
EP0819529A2 (en) * 1996-07-09 1998-01-21 Canon Kabushiki Kaisha Method for preserving a liquid-ejection head, and liquid-ejection apparatus
EP0819529A3 (en) * 1996-07-09 1998-12-16 Canon Kabushiki Kaisha Method for preserving a liquid-ejection head, and liquid-ejection apparatus
US6095639A (en) * 1996-07-09 2000-08-01 Canon Kabushiki Kaisha Method for preserving a liquid-ejection head, and liquid-ejection apparatus
CN115593115A (en) * 2022-11-28 2023-01-13 季华实验室（Cn） Printing nozzle bubble discharge method and device and computer readable storage medium

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