FR2769707B1 - METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER - Google Patents

METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER

Info

Publication number
FR2769707B1
FR2769707B1 FR9712721A FR9712721A FR2769707B1 FR 2769707 B1 FR2769707 B1 FR 2769707B1 FR 9712721 A FR9712721 A FR 9712721A FR 9712721 A FR9712721 A FR 9712721A FR 2769707 B1 FR2769707 B1 FR 2769707B1
Authority
FR
France
Prior art keywords
reservoir
printer
determining
product contained
ink reservoir
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.)
Expired - Fee Related
Application number
FR9712721A
Other languages
French (fr)
Other versions
FR2769707A1 (en
Inventor
Marie Helene Froger
Pascal Coudray
Mickael Lorgeoux
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to FR9712721A priority Critical patent/FR2769707B1/en
Priority to US09/168,717 priority patent/US6351716B1/en
Publication of FR2769707A1 publication Critical patent/FR2769707A1/en
Application granted granted Critical
Publication of FR2769707B1 publication Critical patent/FR2769707B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Ink Jet (AREA)
FR9712721A 1997-10-10 1997-10-10 METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER Expired - Fee Related FR2769707B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9712721A FR2769707B1 (en) 1997-10-10 1997-10-10 METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER
US09/168,717 US6351716B1 (en) 1997-10-10 1998-10-09 Method and device for determining the quantity of product contained in a reservoir, for example in an ink reservoir for a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9712721A FR2769707B1 (en) 1997-10-10 1997-10-10 METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER

Publications (2)

Publication Number Publication Date
FR2769707A1 FR2769707A1 (en) 1999-04-16
FR2769707B1 true FR2769707B1 (en) 2000-01-28

Family

ID=9512114

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9712721A Expired - Fee Related FR2769707B1 (en) 1997-10-10 1997-10-10 METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF PRODUCT CONTAINED IN A RESERVOIR, FOR EXAMPLE IN AN INK RESERVOIR FOR PRINTER

Country Status (1)

Country Link
FR (1) FR2769707B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944512A1 (en) * 1979-11-03 1981-05-14 Pelikan Ag, 3000 Hannover INK TANK WITH CAPACITIVE LEVEL INDICATOR
DE3043810A1 (en) * 1980-11-20 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Monitoring ink supply in ink printer - using metallic sensor changing magnetic field induced by ring coil
EP0261353A3 (en) * 1986-09-24 1989-02-01 Grapha-Holding Ag Measuring unit

Also Published As

Publication number Publication date
FR2769707A1 (en) 1999-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20140630