NL7210356A - - Google Patents

Info

Publication number
NL7210356A
NL7210356A NL7210356A NL7210356A NL7210356A NL 7210356 A NL7210356 A NL 7210356A NL 7210356 A NL7210356 A NL 7210356A NL 7210356 A NL7210356 A NL 7210356A NL 7210356 A NL7210356 A NL 7210356A
Authority
NL
Netherlands
Application number
NL7210356A
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
Priority claimed from DE19712139324 external-priority patent/DE2139324C3/de
Application filed filed Critical
Publication of NL7210356A publication Critical patent/NL7210356A/xx

Links

Classifications

    • 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
    • G01N21/86—Investigating moving sheets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • 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
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Dry Development In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
NL7210356A 1971-08-06 1972-07-27 NL7210356A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712139324 DE2139324C3 (de) 1971-08-06 Photoelektrische Meßvorrichtung

Publications (1)

Publication Number Publication Date
NL7210356A true NL7210356A (xx) 1973-02-08

Family

ID=5815923

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7210356A NL7210356A (xx) 1971-08-06 1972-07-27

Country Status (6)

Country Link
US (1) US3780299A (xx)
JP (1) JPS5518843B2 (xx)
AU (1) AU464369B2 (xx)
FR (1) FR2148483B1 (xx)
GB (1) GB1404944A (xx)
NL (1) NL7210356A (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7210357A (xx) * 1971-08-06 1973-02-08
US3891316A (en) * 1974-03-18 1975-06-24 Xerox Corp Multi-process control system for an electrophotographic printing machine
JPS5913010B2 (ja) * 1975-08-25 1984-03-27 株式会社日立製作所 走査露光形複写機
JPS5461938A (en) * 1977-10-27 1979-05-18 Konishiroku Photo Ind Co Ltd Copy concentration controller/paper clogging detector
US4178095A (en) * 1978-04-10 1979-12-11 International Business Machines Corporation Abnormally low reflectance photoconductor sensing system
US4183657A (en) * 1978-04-10 1980-01-15 International Business Machines Corporation Dynamic reference for an image quality control system
JPS54143144A (en) * 1978-04-14 1979-11-08 Konishiroku Photo Ind Co Ltd Image density detecting method and apparatus for zerographic copier
DE2853458C3 (de) * 1978-09-29 1981-04-02 Gebrüder Bühler AG, 9240 Uzwil Verfahren und Vorrichtung zur Messung der relativen Helligkeit einer Probe
FR2437621A1 (fr) * 1978-09-29 1980-04-25 Buehler Ag Geb Procede et dispositif de mesure de la blancheur d'une farine et leur application au controle de l'homogeneite d'une charge de farine
CA1160278A (en) * 1980-10-21 1984-01-10 Demetris E. Paraskevopoulos Toner concentration sensor
EP0479379B1 (en) * 1990-10-01 1994-08-31 Eastman Kodak Company Spectrophotometer having means for simultaneous modulation, switching and wavelength selection of a light source
US5386295A (en) * 1990-10-01 1995-01-31 Eastman Kodak Company Postacquired spectrophotometers
DE69202539T2 (de) * 1991-09-20 1995-11-02 Nec Corp System zum Kalibrieren eines optischen Instruments in einem Satellit mittels einer Referenz-Lichtquelle.
US6233053B1 (en) * 1997-07-29 2001-05-15 Honeywell International Inc Dual standard gloss sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233781A (en) * 1963-05-08 1966-02-08 Savin Business Machines Corp Toner control system

Also Published As

Publication number Publication date
DE2139324B2 (de) 1977-06-02
FR2148483A1 (xx) 1973-03-23
JPS4826157A (xx) 1973-04-05
DE2139324A1 (de) 1973-02-15
FR2148483B1 (xx) 1976-08-13
US3780299A (en) 1973-12-18
JPS5518843B2 (xx) 1980-05-22
AU464369B2 (en) 1975-08-21
GB1404944A (en) 1975-09-03
AU4531272A (en) 1974-02-07

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed