CA1037105A - Appareil de commande autoreglable - Google Patents

Appareil de commande autoreglable

Info

Publication number
CA1037105A
CA1037105A CA208,521A CA208521A CA1037105A CA 1037105 A CA1037105 A CA 1037105A CA 208521 A CA208521 A CA 208521A CA 1037105 A CA1037105 A CA 1037105A
Authority
CA
Canada
Prior art keywords
electrode
electrode means
toner particles
particles
light rays
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
CA208,521A
Other languages
English (en)
Other versions
CA208521S (en
Inventor
Charles A. Whited
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of CA1037105A publication Critical patent/CA1037105A/fr
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
    • G03G15/08—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)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA208,521A 1973-11-15 1974-09-05 Appareil de commande autoreglable Expired CA1037105A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US416154A US3873197A (en) 1973-11-15 1973-11-15 Apparatus for regulating the toner concentration in a electrophotographic device

Publications (1)

Publication Number Publication Date
CA1037105A true CA1037105A (fr) 1978-08-22

Family

ID=23648784

Family Applications (1)

Application Number Title Priority Date Filing Date
CA208,521A Expired CA1037105A (fr) 1973-11-15 1974-09-05 Appareil de commande autoreglable

Country Status (3)

Country Link
US (1) US3873197A (fr)
CA (1) CA1037105A (fr)
GB (1) GB1477887A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146325A (en) * 1974-03-04 1979-03-27 Siemens Aktiengesellschaft Method and apparatus for visualization of electrostatic images
JPS5497038A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Image density controller for zerographic copier
US4292530A (en) * 1980-03-03 1981-09-29 Minnesota Mining And Manufacturing Company Developer material level sensor
US4372672A (en) * 1980-12-22 1983-02-08 International Business Machines Corporation Self-triggering quality control sensor
US4974024A (en) * 1989-07-03 1990-11-27 Xerox Corporation Predictive toner dispenser controller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682132A (en) * 1969-03-03 1972-08-08 Xerox Corp Automatic developer controller
US3635373A (en) * 1969-12-29 1972-01-18 Xerox Corp Automatic developability control apparatus
US3674353A (en) * 1971-07-01 1972-07-04 Eastman Kodak Co Toner concentration control apparatus
BE793425A (fr) * 1971-12-28 1973-06-28 Xerox Corp Procede et dispositif pour regler automatiquement le developpement d'images de couleurs

Also Published As

Publication number Publication date
GB1477887A (en) 1977-06-29
US3873197A (en) 1975-03-25

Similar Documents

Publication Publication Date Title
US3957367A (en) Color elastrostatographic printing machine
US3854449A (en) Development apparatus
US3970042A (en) Color development apparatus
US5019859A (en) Process control for highlight color with developer switching
US3872825A (en) Particle concentration detector
US3805069A (en) Regulated corona generator
CA1066354A (fr) Generateur de couronne pour electrocopieur couleur
US3801196A (en) Toner concentration regulating apparatus
US3778146A (en) Illuminating apparatus
US5335052A (en) Image recording apparatus with belt-type transfer device
US3891316A (en) Multi-process control system for an electrophotographic printing machine
US3906897A (en) Development apparatus
US4043293A (en) Developability regulating apparatus
CA1091751A (fr) Systeme d'eclairage
EP0531161B1 (fr) Réglage de la dérive du zéro d'un voltmètre électrostatique
CA1037105A (fr) Appareil de commande autoreglable
US4034701A (en) Particle dispenser
US3936176A (en) Device for maintaining a developability regulating apparatus contaminant free
US5380611A (en) Liquid developer systems for imaging on transparent and opaque substrates
US3825337A (en) Color balance display
CA1039344A (fr) Controleur de concentration de particules insensibles a la chaleur
US3940272A (en) Method of developing an electrostatic latent image
US4352552A (en) Multicolor development system for electrophotographic printing machines
US4093457A (en) Method of transfer
US5140373A (en) Electrostatic latent image developing apparatus with bristle height adjusting member