CA968146A - Method and apparatus for improving the contrast during electrostatic printing - Google Patents

Method and apparatus for improving the contrast during electrostatic printing

Info

Publication number
CA968146A
CA968146A CA144,556A CA144556A CA968146A CA 968146 A CA968146 A CA 968146A CA 144556 A CA144556 A CA 144556A CA 968146 A CA968146 A CA 968146A
Authority
CA
Canada
Prior art keywords
improving
electrostatic printing
during electrostatic
contrast during
contrast
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
CA144,556A
Other versions
CA144556S (en
Inventor
Erwin Meyer
Gabor Forgo
Karl Moser
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster AG
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 Zellweger Uster AG filed Critical Zellweger Uster AG
Application granted granted Critical
Publication of CA968146A publication Critical patent/CA968146A/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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • 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
CA144,556A 1971-08-16 1972-06-13 Method and apparatus for improving the contrast during electrostatic printing Expired CA968146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1210571A CH542464A (en) 1971-08-16 1971-08-16 Method and apparatus for improving the contrast in electrostatic printing

Publications (1)

Publication Number Publication Date
CA968146A true CA968146A (en) 1975-05-27

Family

ID=4379895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA144,556A Expired CA968146A (en) 1971-08-16 1972-06-13 Method and apparatus for improving the contrast during electrostatic printing

Country Status (9)

Country Link
JP (1) JPS4831942A (en)
BE (1) BE786994A (en)
CA (1) CA968146A (en)
CH (1) CH542464A (en)
DE (1) DE2220810A1 (en)
FR (1) FR2149751A5 (en)
GB (1) GB1391945A (en)
NL (1) NL7203871A (en)
ZA (1) ZA725143B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330819B2 (en) * 1974-07-19 1978-08-29
NL762871A (en) * 1974-11-01
JPS56165031A (en) * 1980-05-22 1981-12-18 Mitsubishi Rayon Co Production of knot like feather yarn
JPH0656511B2 (en) * 1983-03-07 1994-07-27 富士ゼロックス株式会社 Latent image forming method in electrophotography
JPS6021749U (en) * 1983-07-22 1985-02-14 富士ゼロックス株式会社 electrophotographic copying device

Also Published As

Publication number Publication date
JPS4831942A (en) 1973-04-26
NL7203871A (en) 1973-02-20
BE786994A (en) 1972-11-16
CH542464A (en) 1973-09-30
ZA725143B (en) 1973-05-30
GB1391945A (en) 1975-04-23
DE2220810A1 (en) 1973-03-01
FR2149751A5 (en) 1973-03-30

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