GB1272087A - Copier duplicator machine - Google Patents

Copier duplicator machine

Info

Publication number
GB1272087A
GB1272087A GB24372/69A GB2437269A GB1272087A GB 1272087 A GB1272087 A GB 1272087A GB 24372/69 A GB24372/69 A GB 24372/69A GB 2437269 A GB2437269 A GB 2437269A GB 1272087 A GB1272087 A GB 1272087A
Authority
GB
United Kingdom
Prior art keywords
sheet
energizes
copy
motor
switch
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
GB24372/69A
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.)
AB Dick Co
Original Assignee
Multigraphics Inc
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 Multigraphics Inc filed Critical Multigraphics Inc
Publication of GB1272087A publication Critical patent/GB1272087A/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
    • 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
    • G03G15/225—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 using contact-printing
    • 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
    • G03G15/228—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 the process involving the formation of a master, e.g. photocopy-printer machines
    • 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
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0446—Magnification degree

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

1,272,087. Handling sheets. ADDRESSOGRAPH - MULTIGRAPH CORP. 13 May, 1969 [7 June, 1968], No. 24372/69. Heading B8R. [Also in Divisions B6 and G2] A photoconductive sheet 28 is charged at 81, imagewise exposed at 50, has surplus charge removed by lamps 150, and is clamped to a drum 52 which repeatedly rotates past a developing station 56 and a transfer station 58 to produce copies on sheets 34; sheet 28 being ejected when a preselected number of copies has been made, or at the discretion of the operator. Before use, the operator adjusts a mirror 96 and lens 98 according to whether a reduced or same-size copy is required. This adjustment makes one of switches 90 and 92 operable. In use, a sheet 28 is fed by a roll 76, trips a switch 80 to disable roll 76, is fed past charger 81 and trips switches 90 and 92. Switch 90 or 92 energizes xenon lamps 94 for imagewise exposure and also energizes a time delay (321 or 324, Fig. 12, not shown) which operates surplus charge clearing lamps 150 as the trailing edge of the sheet passes the delay being determined by which of switches 90, 92 has been made operable by the adjustment of the optical system. Switch 90 or 92 also energizes a time delay (326) which on timing out de-energizes the charger 81 and sheet feed rolls 72 to 75 and energizes a motor 154. Motor 154 rotates drum 52 so that a follower 198 (Fig. 5) moves away from a cam 202 allowing springs 182 to close a clamp 176 on the edge of the sheet. Motor 154 also starts feeding copy sheets 34. The drum rotates past an electrically biased magnetic brush 56 and a transfer roll 58 comprising a metal shaft having a semi-conduction shell and the developed images are fixed by rolls 268, 270. When a copy counter (44) or manual switch (329) are operated, a cam 206 engages follower 198 to release the sheet 28 which is fed out with a copy sheet to prevent developer offset on to transfer roll 58. A solenoid (258, Figs. 11, 12, not shown) then disables the copy sheet feed and finally motor 154 is deenergized.
GB24372/69A 1968-06-07 1969-05-13 Copier duplicator machine Expired GB1272087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73540268A 1968-06-07 1968-06-07

Publications (1)

Publication Number Publication Date
GB1272087A true GB1272087A (en) 1972-04-26

Family

ID=24955638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24372/69A Expired GB1272087A (en) 1968-06-07 1969-05-13 Copier duplicator machine

Country Status (2)

Country Link
US (1) US3612682A (en)
GB (1) GB1272087A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793559A (en) * 1971-12-30 1973-06-29 Xerox Corp ELECTROSTATOGRAPHIC MACHINE INCLUDING AN EXPOSURE PRE-DEVELOPMENT DEVICE
GB1416062A (en) * 1973-03-30 1975-12-03 Xerox Corp Electrostatography
JPS502548A (en) * 1973-05-08 1975-01-11
US3998541A (en) * 1975-04-18 1976-12-21 Eastman Kodak Company Illumination arrangement providing for interframe flashdown
NL7507493A (en) * 1975-06-24 1976-12-28 Oce Van Der Grinten Nv COPIER.
IT1055458B (en) * 1976-02-26 1981-12-21 Grafosol Spa REFINEMENTS TO THE MATRIX SUPPORT DEVICE IN THE ELECTROSTATIC DEVELOPMENT APP
US4192607A (en) * 1978-07-12 1980-03-11 Eastman Kodak Company Apparatus for selectively copying documents from two different document feeders
US4411513A (en) * 1980-03-05 1983-10-25 Imaging Technology Limited Reader-printer
US4599289A (en) * 1982-05-27 1986-07-08 Canon Kabushiki Kaisha Pressure-fixable encapsulated toner
JPS6193463A (en) * 1984-10-15 1986-05-12 Fuji Photo Film Co Ltd Removal of black frame in electrophotographic copying machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600580A (en) * 1949-06-03 1952-06-17 Haloid Co Electrophotographic apparatus
US2774290A (en) * 1952-04-10 1956-12-18 Jackson F Mormann Automatic copying machines
DE1249089B (en) * 1962-04-04 1967-08-31
US3190199A (en) * 1963-01-02 1965-06-22 Xerox Corp Xerographic copying apparatus
BE632721A (en) * 1963-04-11
US3215055A (en) * 1963-06-28 1965-11-02 Addressograph Multigraph Automatic copying machine
US3397627A (en) * 1965-05-21 1968-08-20 Addressograph Multigraph Photoelectrostatic copying machine
US3416860A (en) * 1965-06-11 1968-12-17 Scm Corp Electrostatic printer

Also Published As

Publication number Publication date
US3612682A (en) 1971-10-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee