GB1194846A - Electrostatic Copying Method and Apparatus - Google Patents

Electrostatic Copying Method and Apparatus

Info

Publication number
GB1194846A
GB1194846A GB955567A GB955567A GB1194846A GB 1194846 A GB1194846 A GB 1194846A GB 955567 A GB955567 A GB 955567A GB 955567 A GB955567 A GB 955567A GB 1194846 A GB1194846 A GB 1194846A
Authority
GB
United Kingdom
Prior art keywords
master
sheet
station
copy sheets
feb
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
GB955567A
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.)
Olivetti SpA
Original Assignee
Olivetti SpA
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 Olivetti SpA filed Critical Olivetti SpA
Publication of GB1194846A publication Critical patent/GB1194846A/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
    • G03G15/26—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is obtained by projection of the entire image, i.e. whole-frame projection
    • 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
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

1,194,846. Electro-photographic apparatus. ING. C. OLIVETTI & C. S.p.A. Feb. 28, 1967 [Feb. 28, 1966], No.9555/67. Heading G2H. A copy sheet C, Fig. 4, having a zinc oxide or other photo-conductive coating on its lower face is electrostatically charged to a potential in the rapid decay region X-Z, Fig. 5, at a charging station 3 while a portion of the sheet is being imagewise exposed at a station 4 to a master M. The master and copy sheets are fed through an inlet 2 by rollers 30, 31. Upper and lower sections 40, 41 have corona discharge slides 42. The station 4 has an exposure opening 51 covered by a sheet of transparent plastic. A fluorescent lamp 56 is partially surrounded by a sheath 58 which upon rotation of the lamp assembly by a knob (61) Fig. 3 (not shown) controls the light output. The master and copy sheets are separated by guide plates 86, 87 Fig. 4, and plates 81, 82. Copy sheets are fed through a developer trough containing liquid having removable guide ribs 97 leading to squeegee rollers 101, 102.
GB955567A 1966-02-28 1967-02-28 Electrostatic Copying Method and Apparatus Expired GB1194846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53844366A 1966-02-28 1966-02-28

Publications (1)

Publication Number Publication Date
GB1194846A true GB1194846A (en) 1970-06-10

Family

ID=24146960

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5093069A Expired GB1194849A (en) 1966-02-28 1967-02-28 Electrostatic Copying Machine
GB955567A Expired GB1194846A (en) 1966-02-28 1967-02-28 Electrostatic Copying Method and Apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5093069A Expired GB1194849A (en) 1966-02-28 1967-02-28 Electrostatic Copying Machine

Country Status (7)

Country Link
BE (1) BE694711A (en)
CH (1) CH479095A (en)
DE (1) DE1522571A1 (en)
ES (1) ES337352A1 (en)
FR (1) FR1512854A (en)
GB (2) GB1194849A (en)
SU (1) SU461517A3 (en)

Also Published As

Publication number Publication date
ES337352A1 (en) 1968-02-16
GB1194849A (en) 1970-06-10
FR1512854A (en) 1968-02-09
BE694711A (en) 1967-07-31
SU461517A3 (en) 1975-02-25
DE1522571A1 (en) 1969-09-18
CH479095A (en) 1969-09-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees