JPS56164925A - Detecting meter for residual amount of liquid - Google Patents

Detecting meter for residual amount of liquid

Info

Publication number
JPS56164925A
JPS56164925A JP6939880A JP6939880A JPS56164925A JP S56164925 A JPS56164925 A JP S56164925A JP 6939880 A JP6939880 A JP 6939880A JP 6939880 A JP6939880 A JP 6939880A JP S56164925 A JPS56164925 A JP S56164925A
Authority
JP
Japan
Prior art keywords
ink
residual amount
leds
liquid
electrodes
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
JP6939880A
Other languages
Japanese (ja)
Inventor
Shigetoshi Suzuki
Takashi Enjoji
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6939880A priority Critical patent/JPS56164925A/en
Publication of JPS56164925A publication Critical patent/JPS56164925A/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
    • G01F23/22—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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE:To facilitate the detection of a residual amount of ink and improve maintenance characteristics in an apparatus using an ink tank by making plural LEDs emit light in compliance with the residual amount of ink. CONSTITUTION:When the pulses from a monostable multivibrator 6 are applied to the electrodes 1, 2 immersed in the ink 3 in an ink tank 4, the current flowing across the electrodes 1 and 2 changes according to the residual amount of the ink 3. The voltage across a resistance 5 with a change in this current is detected with comparators 9a-9n, and LEDs 7a-7n are made to emit light by way of corresponding FFs 10a-10n. Hence, the residual amount of the ink is discriminated from the number of light emission of the LEDs.
JP6939880A 1980-05-23 1980-05-23 Detecting meter for residual amount of liquid Pending JPS56164925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6939880A JPS56164925A (en) 1980-05-23 1980-05-23 Detecting meter for residual amount of liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6939880A JPS56164925A (en) 1980-05-23 1980-05-23 Detecting meter for residual amount of liquid

Publications (1)

Publication Number Publication Date
JPS56164925A true JPS56164925A (en) 1981-12-18

Family

ID=13401451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6939880A Pending JPS56164925A (en) 1980-05-23 1980-05-23 Detecting meter for residual amount of liquid

Country Status (1)

Country Link
JP (1) JPS56164925A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919171A (en) * 1982-07-23 1984-01-31 Pentel Kk Ink feeder for ink type wire dot printer
JPS6215415A (en) * 1985-07-12 1987-01-23 Hitachi Koki Co Ltd Detector for ink level
JPH02278125A (en) * 1989-04-19 1990-11-14 Mitsubishi Pencil Co Ltd Detecting method of ink in ink-occluding body of writing instrument
US5357347A (en) * 1989-04-25 1994-10-18 Canon Kabushiki Kaisha Communication system with inoperability detector such as "Ink Out" detector in receiving machine
JP2007261637A (en) * 2006-03-28 2007-10-11 Daio Paper Corp Sanitary fiber aggregate product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935739A (en) * 1974-04-10 1976-02-03 Liquidometer Corporation Liquid level gauging apparatus
JPS5134455B2 (en) * 1972-06-06 1976-09-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134455B2 (en) * 1972-06-06 1976-09-27
US3935739A (en) * 1974-04-10 1976-02-03 Liquidometer Corporation Liquid level gauging apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919171A (en) * 1982-07-23 1984-01-31 Pentel Kk Ink feeder for ink type wire dot printer
JPS6215415A (en) * 1985-07-12 1987-01-23 Hitachi Koki Co Ltd Detector for ink level
JPH02278125A (en) * 1989-04-19 1990-11-14 Mitsubishi Pencil Co Ltd Detecting method of ink in ink-occluding body of writing instrument
US5357347A (en) * 1989-04-25 1994-10-18 Canon Kabushiki Kaisha Communication system with inoperability detector such as "Ink Out" detector in receiving machine
JP2007261637A (en) * 2006-03-28 2007-10-11 Daio Paper Corp Sanitary fiber aggregate product

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