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JPS56147017A - Float type liquid level detector - Google Patents

Float type liquid level detector

Info

Publication number
JPS56147017A
JPS56147017A JP4993180A JP4993180A JPS56147017A JP S56147017 A JPS56147017 A JP S56147017A JP 4993180 A JP4993180 A JP 4993180A JP 4993180 A JP4993180 A JP 4993180A JP S56147017 A JPS56147017 A JP S56147017A
Authority
JP
Japan
Prior art keywords
switch
ink
liquid level
type liquid
level detector
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
JP4993180A
Other languages
Japanese (ja)
Inventor
Michio Umezawa
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 JP4993180A priority Critical patent/JPS56147017A/en
Publication of JPS56147017A publication Critical patent/JPS56147017A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
    • 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
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B41J2002/17576—Ink level or ink residue control using a floater for ink level indication

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

PURPOSE:To prevent overflowing by recovered ink by generating an alarm even when the ink level in a tank rises too much in an ink jet recorder. CONSTITUTION:A cylindrical body 20 has upper, lower stoppers 20a, 20b, and a float 21 having permanent magnets 21a, 21b is provided on the outer side thereof vertically movably in follow up to the ink level. A lead switch 22 and a lead wire 23 are provided on the inner side, and the switch 22 is made when the permanent magnet 21a or 21b approaches the switch 22. Hence, the permissible range of the ink level is roughly equal to the interpitch distance P between the magnets. Between A and B, the switch 22 breaks and when the level rises to >=A or lowers to <=B, the switch 22 makes, and an alarm is generated.
JP4993180A 1980-04-16 1980-04-16 Float type liquid level detector Pending JPS56147017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4993180A JPS56147017A (en) 1980-04-16 1980-04-16 Float type liquid level detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4993180A JPS56147017A (en) 1980-04-16 1980-04-16 Float type liquid level detector

Publications (1)

Publication Number Publication Date
JPS56147017A true JPS56147017A (en) 1981-11-14

Family

ID=12844754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4993180A Pending JPS56147017A (en) 1980-04-16 1980-04-16 Float type liquid level detector

Country Status (1)

Country Link
JP (1) JPS56147017A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622697A1 (en) * 1987-11-04 1989-05-05 Tuyauterie Tech Nouvelles Device for monitoring the pressure in a leaktight chamber
EP1097814A3 (en) * 1999-11-05 2001-08-22 Seiko Epson Corporation Ink-jet recording apparatus
EP1142713A2 (en) * 1999-11-05 2001-10-10 Seiko Epson Corporation Inkjet type recording device and method of supplying ink to sub-tank by the same device, and method of checking amount of ink supplied to sub-tank by the same device
KR20030010045A (en) * 2001-07-25 2003-02-05 주식회사 하이퍼닉스 Automatic Ink Level Control Unit in Inkzet Printer and thereof Method
JP2019168414A (en) * 2018-03-26 2019-10-03 株式会社 正和 Liquid surface level sensor and lubricating oil supply device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556236A (en) * 1978-06-28 1980-01-17 Ckd Corp Float switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556236A (en) * 1978-06-28 1980-01-17 Ckd Corp Float switch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622697A1 (en) * 1987-11-04 1989-05-05 Tuyauterie Tech Nouvelles Device for monitoring the pressure in a leaktight chamber
EP1097814A3 (en) * 1999-11-05 2001-08-22 Seiko Epson Corporation Ink-jet recording apparatus
EP1142713A2 (en) * 1999-11-05 2001-10-10 Seiko Epson Corporation Inkjet type recording device and method of supplying ink to sub-tank by the same device, and method of checking amount of ink supplied to sub-tank by the same device
US6796627B2 (en) 1999-11-05 2004-09-28 Seiko Epson Corporation Ink jet recording apparatus, method of replenishing ink to subtank in the apparatus, and method of checking the replenished amount of ink
EP1142713A4 (en) * 1999-11-05 2005-04-20 Seiko Epson Corp Inkjet type recording device and method of supplying ink to sub-tank by the same device, and method of checking amount of ink supplied to sub-tank by the same device
KR20030010045A (en) * 2001-07-25 2003-02-05 주식회사 하이퍼닉스 Automatic Ink Level Control Unit in Inkzet Printer and thereof Method
JP2019168414A (en) * 2018-03-26 2019-10-03 株式会社 正和 Liquid surface level sensor and lubricating oil supply device

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