DE2960963D1 - Xerographic copier - Google Patents

Xerographic copier

Info

Publication number
DE2960963D1
DE2960963D1 DE7979100715T DE2960963T DE2960963D1 DE 2960963 D1 DE2960963 D1 DE 2960963D1 DE 7979100715 T DE7979100715 T DE 7979100715T DE 2960963 T DE2960963 T DE 2960963T DE 2960963 D1 DE2960963 D1 DE 2960963D1
Authority
DE
Germany
Prior art keywords
xerographic copier
xerographic
copier
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
DE7979100715T
Other languages
German (de)
Inventor
Clement Card Wilson
Cleave George William Van
Larry Mason Ernst
Steven David Seigal
James Robert Champion
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27420556&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE2960963(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US05/894,957 external-priority patent/US4178095A/en
Priority claimed from US05/894,955 external-priority patent/US4183657A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE2960963D1 publication Critical patent/DE2960963D1/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
    • G03G15/50—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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00025—Machine control, e.g. regulating different parts of the machine
    • G03G2215/00029—Image density detection
    • G03G2215/00033—Image density detection on recording member
    • G03G2215/00037—Toner image detection
    • G03G2215/00042—Optical detection
DE7979100715T 1978-04-10 1979-03-09 Xerographic copier Expired DE2960963D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89495678A 1978-04-10 1978-04-10
US05/894,957 US4178095A (en) 1978-04-10 1978-04-10 Abnormally low reflectance photoconductor sensing system
US05/894,955 US4183657A (en) 1978-04-10 1978-04-10 Dynamic reference for an image quality control system

Publications (1)

Publication Number Publication Date
DE2960963D1 true DE2960963D1 (en) 1981-12-24

Family

ID=27420556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979100715T Expired DE2960963D1 (en) 1978-04-10 1979-03-09 Xerographic copier

Country Status (2)

Country Link
EP (1) EP0004573B1 (en)
DE (1) DE2960963D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312589A (en) * 1979-11-19 1982-01-26 International Business Machines Corporation Charge density control for an electrostatic copier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251761A (en) * 1962-08-28 1966-05-17 Bayer Ag Process for the production of organic compounds containing nitrogen and chlorine combined in an-n=ccl-radical
US3348523A (en) * 1965-04-07 1967-10-24 Xerox Corp Automatic toner control system
US3969114A (en) * 1973-07-26 1976-07-13 Xerox Corporation Method for monitoring copy quality
US4082445A (en) * 1975-11-21 1978-04-04 Xerox Corporation Toner control system for an electrostatic reproduction machine
GB1561923A (en) * 1976-12-31 1980-03-05 Xerox Corp Control system for an electrostatogrophic copying machine

Also Published As

Publication number Publication date
EP0004573B1 (en) 1981-10-14
EP0004573A1 (en) 1979-10-17

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee