DE3173011D1 - Illumination arrangement for elimination of gray borders in a copying device - Google Patents

Illumination arrangement for elimination of gray borders in a copying device

Info

Publication number
DE3173011D1
DE3173011D1 DE8181304467T DE3173011T DE3173011D1 DE 3173011 D1 DE3173011 D1 DE 3173011D1 DE 8181304467 T DE8181304467 T DE 8181304467T DE 3173011 T DE3173011 T DE 3173011T DE 3173011 D1 DE3173011 D1 DE 3173011D1
Authority
DE
Germany
Prior art keywords
elimination
copying device
illumination arrangement
gray borders
borders
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
DE8181304467T
Other languages
German (de)
Inventor
Richard C Boykin
Paul H Stiebitz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26887168&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3173011(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US06/191,559 external-priority patent/US4382672A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE3173011D1 publication Critical patent/DE3173011D1/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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • G03G15/047—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
DE8181304467T 1980-09-29 1981-09-28 Illumination arrangement for elimination of gray borders in a copying device Expired DE3173011D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/191,559 US4382672A (en) 1980-09-29 1980-09-29 Illumination arrangement for elimination of gray borders in copying device
US24924481A 1981-03-30 1981-03-30

Publications (1)

Publication Number Publication Date
DE3173011D1 true DE3173011D1 (en) 1986-01-02

Family

ID=26887168

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181304467T Expired DE3173011D1 (en) 1980-09-29 1981-09-28 Illumination arrangement for elimination of gray borders in a copying device

Country Status (2)

Country Link
EP (1) EP0049146B2 (en)
DE (1) DE3173011D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62201479A (en) * 1986-02-28 1987-09-05 Mita Ind Co Ltd Image forming device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1296955A (en) * 1970-06-23 1972-11-22
JPS562956B2 (en) * 1974-06-22 1981-01-22
NL7808977A (en) * 1978-09-01 1978-11-30 Oce Nederland Bv EXPOSURE DEVICE.
DE3008653A1 (en) * 1979-03-09 1980-09-11 Canon Kk SLOT LIGHTING DEVICE

Also Published As

Publication number Publication date
EP0049146B2 (en) 1988-06-08
EP0049146B1 (en) 1985-11-21
EP0049146A1 (en) 1982-04-07

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee