CA1012202A - Humidity compensated control device - Google Patents

Humidity compensated control device

Info

Publication number
CA1012202A
CA1012202A CA198,951A CA198951A CA1012202A CA 1012202 A CA1012202 A CA 1012202A CA 198951 A CA198951 A CA 198951A CA 1012202 A CA1012202 A CA 1012202A
Authority
CA
Canada
Prior art keywords
control device
compensated control
humidity compensated
humidity
control
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
CA198,951A
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 CA1012202A publication Critical patent/CA1012202A/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
    • G03G15/08—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
    • 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)
CA198,951A 1973-05-07 1974-05-03 Humidity compensated control device Expired CA1012202A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00357764A US3814516A (en) 1973-05-07 1973-05-07 Humidity compensated control device

Publications (1)

Publication Number Publication Date
CA1012202A true CA1012202A (en) 1977-06-14

Family

ID=23406936

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198,951A Expired CA1012202A (en) 1973-05-07 1974-05-03 Humidity compensated control device

Country Status (4)

Country Link
US (1) US3814516A (en)
CA (1) CA1012202A (en)
GB (1) GB1458558A (en)
NL (1) NL165580C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027621A (en) * 1975-03-14 1977-06-07 Xerox Corporation Developing system for electrostatic reproduction machines
JPS5560967A (en) * 1978-10-31 1980-05-08 Sharp Corp Electrophotographic apparatus
JPS5754962A (en) * 1980-09-19 1982-04-01 Mita Ind Co Ltd Development device
US4422737A (en) * 1981-12-14 1983-12-27 Gribanov Dmitry D Device for obtaining topographic picture of surface of rotating object
GB2203358A (en) * 1987-01-12 1988-10-19 Ricoh Kk A toner density control device
JP2631305B2 (en) * 1988-06-21 1997-07-16 キヤノン株式会社 Image forming device
JPH0310272A (en) * 1989-06-07 1991-01-17 Canon Inc Image forming device
US5191362A (en) * 1990-02-21 1993-03-02 Tokyo Electric Co., Ltd. Electrophotographic printing apparatus with a control system responsive to temperature changes
US5081498A (en) * 1991-01-10 1992-01-14 Xerox Corporation Humidity compensation in electrophotographic printing by measuring the dielectric characteristics of the development mixture
JP3329355B2 (en) * 1994-05-05 2002-09-30 新日本製鐵株式会社 Electrostatic recording head
WO2000062828A1 (en) * 1996-04-30 2000-10-26 Medtronic, Inc. Autologous fibrin sealant and method for making the same
US7031633B2 (en) * 2003-11-25 2006-04-18 Eastman Kodak Company Printing apparatus and method with improved control of humidity and temperature
US6973277B2 (en) * 2003-11-25 2005-12-06 Eastman Kodak Company Printing apparatus and method with improved control of airflow
US7354146B2 (en) 2004-07-02 2008-04-08 Hewlett-Packard Development Company, L.P. Dryer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424131A (en) * 1964-09-30 1969-01-28 Xerox Corp Electroded cascade development system
US3348523A (en) * 1965-04-07 1967-10-24 Xerox Corp Automatic toner control system

Also Published As

Publication number Publication date
US3814516A (en) 1974-06-04
NL165580B (en) 1980-11-17
GB1458558A (en) 1976-12-15
NL165580C (en) 1981-04-15
NL7403704A (en) 1974-05-27

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