GB1389116A - Toner level control arrangements - Google Patents

Toner level control arrangements

Info

Publication number
GB1389116A
GB1389116A GB4680872A GB4680872A GB1389116A GB 1389116 A GB1389116 A GB 1389116A GB 4680872 A GB4680872 A GB 4680872A GB 4680872 A GB4680872 A GB 4680872A GB 1389116 A GB1389116 A GB 1389116A
Authority
GB
United Kingdom
Prior art keywords
fluid
slit
resistor
curtain
optical density
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
Application number
GB4680872A
Other languages
English (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.)
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
Publication of GB1389116A publication Critical patent/GB1389116A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/104—Preparing, mixing, transporting or dispensing developer
    • G03G15/105—Detection or control means for the toner concentration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/2813—Producing thin layers of samples on a substrate, e.g. smearing, spinning-on
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB4680872A 1971-10-20 1972-10-11 Toner level control arrangements Expired GB1389116A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46083045A JPS4848133A (enExample) 1971-10-20 1971-10-20

Publications (1)

Publication Number Publication Date
GB1389116A true GB1389116A (en) 1975-04-03

Family

ID=13791216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4680872A Expired GB1389116A (en) 1971-10-20 1972-10-11 Toner level control arrangements

Country Status (6)

Country Link
US (1) US3840304A (enExample)
JP (1) JPS4848133A (enExample)
CA (1) CA997591A (enExample)
DE (1) DE2251344C3 (enExample)
FR (1) FR2157580A5 (enExample)
GB (1) GB1389116A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242781A (en) * 1975-10-01 1977-04-02 Dainippon Toryo Co Ltd Test solution tank for turbidmeter
JPS5564754U (enExample) * 1979-11-13 1980-05-02

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984450A (enExample) * 1972-12-19 1974-08-14
US3984786A (en) * 1975-05-28 1976-10-05 Jersey Nuclear-Avco Isotopes, Inc. Nozzle for free jet dye laser
DE2912920C2 (de) * 1978-04-04 1984-03-08 Gow-Mac Instrument Co., Bridgewater, N.J. Vorrichtung zur Herstellung eines dünnen Filmes einer strömenden Flüssigkeit für die optische Absorptionsmessung
US4746215A (en) * 1986-04-24 1988-05-24 Pacific Scientific Company Particle counter air inlet assembly
US5033851A (en) * 1989-05-30 1991-07-23 Pacific Scientific Company Light scattering method and apparatus for detecting particles in liquid sample
EP0746752A4 (en) * 1993-08-19 2000-02-23 Venturedyne Ltd PARTICLE DETECTOR HAVING A LOW PRESSURE DROP AIR CIRCULATION SYSTEM
US6959829B2 (en) * 2002-11-20 2005-11-01 Graham Packaging Co. Lp Self-adjusting re-sealable spring center seal closure
US8864876B2 (en) * 2005-02-14 2014-10-21 Neumann Systems Group, Inc. Indirect and direct method of sequestering contaminates
US8113491B2 (en) * 2005-02-14 2012-02-14 Neumann Systems Group, Inc. Gas-liquid contactor apparatus and nozzle plate
US7379487B2 (en) 2005-02-14 2008-05-27 Neumann Information Systems, Inc. Two phase reactor
US8398059B2 (en) 2005-02-14 2013-03-19 Neumann Systems Group, Inc. Gas liquid contactor and method thereof
US7866638B2 (en) 2005-02-14 2011-01-11 Neumann Systems Group, Inc. Gas liquid contactor and effluent cleaning system and method
DE102006029899B4 (de) 2006-06-29 2009-06-04 Fresenius Medical Care Deutschland Gmbh Spektroskopischer Detektor und Verfahren zur Bestimmung von Blut und biologischen Markersubstanzen in Flüssigkeiten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242781A (en) * 1975-10-01 1977-04-02 Dainippon Toryo Co Ltd Test solution tank for turbidmeter
JPS5564754U (enExample) * 1979-11-13 1980-05-02

Also Published As

Publication number Publication date
FR2157580A5 (enExample) 1973-06-01
DE2251344A1 (de) 1973-04-26
DE2251344B2 (de) 1977-12-08
CA997591A (en) 1976-09-28
DE2251344C3 (de) 1978-08-17
JPS4848133A (enExample) 1973-07-07
US3840304A (en) 1974-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee