FR2319930A1 - DEVICE TO DETECT THE PRESENCE OR ABSENCE OF A MAGNETIC DEVELOPMENT AGENT IN A CONTAINER - Google Patents

DEVICE TO DETECT THE PRESENCE OR ABSENCE OF A MAGNETIC DEVELOPMENT AGENT IN A CONTAINER

Info

Publication number
FR2319930A1
FR2319930A1 FR7623159A FR7623159A FR2319930A1 FR 2319930 A1 FR2319930 A1 FR 2319930A1 FR 7623159 A FR7623159 A FR 7623159A FR 7623159 A FR7623159 A FR 7623159A FR 2319930 A1 FR2319930 A1 FR 2319930A1
Authority
FR
France
Prior art keywords
absence
container
detect
development agent
magnetic development
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.)
Granted
Application number
FR7623159A
Other languages
French (fr)
Other versions
FR2319930B3 (en
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 Production Printing Holding BV
Original Assignee
Oce Van der Grinten NV
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 Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Publication of FR2319930A1 publication Critical patent/FR2319930A1/en
Application granted granted Critical
Publication of FR2319930B3 publication Critical patent/FR2319930B3/fr
Granted 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
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G03G15/086—Detection or control means for the developer level the level being measured by electro-magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Dry Development In Electrophotography (AREA)
FR7623159A 1975-07-30 1976-07-29 DEVICE TO DETECT THE PRESENCE OR ABSENCE OF A MAGNETIC DEVELOPMENT AGENT IN A CONTAINER Granted FR2319930A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10446675U JPS5219232U (en) 1975-07-30 1975-07-30

Publications (2)

Publication Number Publication Date
FR2319930A1 true FR2319930A1 (en) 1977-02-25
FR2319930B3 FR2319930B3 (en) 1979-06-29

Family

ID=14381352

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7623159A Granted FR2319930A1 (en) 1975-07-30 1976-07-29 DEVICE TO DETECT THE PRESENCE OR ABSENCE OF A MAGNETIC DEVELOPMENT AGENT IN A CONTAINER

Country Status (4)

Country Link
JP (1) JPS5219232U (en)
FR (1) FR2319930A1 (en)
GB (1) GB1533716A (en)
NL (1) NL7608011A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029710A1 (en) * 1979-11-24 1981-06-03 Hitachi, Ltd. Toner concentration detecting apparatus
US5669044A (en) * 1995-06-07 1997-09-16 Nashua Corporation Article and method for dispensing toner and the like

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029580B (en) * 1978-08-10 1983-06-15 Central Electr Generat Board Improvements in or relating to the collection and sensing of magnetic debris in lubricating oil and other liquids
JPS6143058Y2 (en) * 1980-06-23 1986-12-05
JPS5740822U (en) * 1980-08-19 1982-03-05
JPH0229398Y2 (en) * 1985-01-17 1990-08-07

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119350A (en) * 1974-08-07 1976-02-16 Mitsubishi Electric Corp Netsukokankino suiryoseigyosochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029710A1 (en) * 1979-11-24 1981-06-03 Hitachi, Ltd. Toner concentration detecting apparatus
US5669044A (en) * 1995-06-07 1997-09-16 Nashua Corporation Article and method for dispensing toner and the like

Also Published As

Publication number Publication date
FR2319930B3 (en) 1979-06-29
NL7608011A (en) 1977-02-01
GB1533716A (en) 1978-11-29
JPS5219232U (en) 1977-02-10

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