GB853169A - Improvements in or relating to electro-photographic copying apparatus - Google Patents

Improvements in or relating to electro-photographic copying apparatus

Info

Publication number
GB853169A
GB853169A GB39531/57A GB3953157A GB853169A GB 853169 A GB853169 A GB 853169A GB 39531/57 A GB39531/57 A GB 39531/57A GB 3953157 A GB3953157 A GB 3953157A GB 853169 A GB853169 A GB 853169A
Authority
GB
United Kingdom
Prior art keywords
brush
tray
toner powder
powder
copy paper
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
GB39531/57A
Inventor
Frederick George Francis
Robert James Moulton
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.)
Caribonum Ltd
Original Assignee
Caribonum Ltd
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 Caribonum Ltd filed Critical Caribonum Ltd
Priority to GB39531/57A priority Critical patent/GB853169A/en
Priority to US780339A priority patent/US2961932A/en
Priority to DEC18086A priority patent/DE1105720B/en
Publication of GB853169A publication Critical patent/GB853169A/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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Abstract

853,169. Electrophotographic processes. CARIBONUM Ltd. Dec. 16, 1958 [Dec. 19, 1957], No. 39531/57. Class 98(2) In the automatic xerographic contact printer of Specification 853,168 for successively charging, contact printing, powder developing and fixing the powder image on copy paper having a photoconductive insulating layer, the electrostatic charge image bearing paper passes between a magnetic brush charged with toner powder and a rotating brush forming magnet. As shown, the copy paper is fed upwards from a rotating transparent contact-printing cylinder on the underside of a brass plate 52. A quatrifoil bar-magnet forms a brush 54 of iron carrier particles mixed with triboelectrically charged toner powder and its anti-clockwise rotation produces a rising and falling movement of the brush and a rolling movement of the carrier particles over the copy paper which moves between the brush and plate 52. Carrier particles which are depleted of toner powder fall from the magnetic brush and are deflected by blade 55 on to vibrating tray 56. Tray 56 is pivotally mounted on resilient links 72 and connected with an electromagnetic vibrator (Fig. 1, not shown) which moves the particles to the rear end of the tray. A further vibrating tray 58 is mounted on flexible links 74 and feeds the particles to the magnetic brush. Fresh toner powder is added at the rear of tray 56. Specification 853,170 also is referred to.
GB39531/57A 1957-12-19 1957-12-19 Improvements in or relating to electro-photographic copying apparatus Expired GB853169A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB39531/57A GB853169A (en) 1957-12-19 1957-12-19 Improvements in or relating to electro-photographic copying apparatus
US780339A US2961932A (en) 1957-12-19 1958-12-15 Electrophotographic copying apparatus
DEC18086A DE1105720B (en) 1957-12-19 1958-12-18 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39531/57A GB853169A (en) 1957-12-19 1957-12-19 Improvements in or relating to electro-photographic copying apparatus

Publications (1)

Publication Number Publication Date
GB853169A true GB853169A (en) 1960-11-02

Family

ID=10410066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39531/57A Expired GB853169A (en) 1957-12-19 1957-12-19 Improvements in or relating to electro-photographic copying apparatus

Country Status (3)

Country Link
US (1) US2961932A (en)
DE (1) DE1105720B (en)
GB (1) GB853169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772898A1 (en) * 1967-12-29 1971-06-16 Addressograph Multigraph Method and device for fixing toners

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083622A (en) * 1959-06-12 1963-04-02 Robertson Photo Mechanix Inc Xerographic apparatus
US3214272A (en) * 1960-05-10 1965-10-26 Method of recording still optical images by means of a photocondugtive layer using thermoplastic imagewise deformation of the image layer
US3117891A (en) * 1960-09-26 1964-01-14 Xerox Corp Xerographic apparatus
US3187651A (en) * 1960-12-23 1965-06-08 Xerox Corp Xerographic reproducing apparatus
US3441345A (en) * 1963-05-20 1969-04-29 Addressograph Multigraph Photocopying
US3396645A (en) * 1965-11-17 1968-08-13 Equipment Dev Corp Electrophotographic printing apparatus
US3459477A (en) * 1966-03-07 1969-08-05 Electrocopy Corp Copy machine and method of electrostatic copying
US3490842A (en) * 1966-10-18 1970-01-20 Sunbeam Business Equipment Co Electrophotostatic copying machine
JPS497579Y1 (en) * 1969-05-23 1974-02-22
DE2219307C3 (en) * 1972-04-20 1979-01-18 Lumoprint Zindler Kg, 2000 Hamburg Apparatus for making copies with a reciprocating carriage for the original
US3891318A (en) * 1974-02-07 1975-06-24 Scott Paper Co Method and apparatus for registering, feeding and separating original and copy sheets in a duplicator
US4285686A (en) * 1979-10-05 1981-08-25 Gloucester Engineering Co., Inc. V-Board folder for flexible plastic films
WO2020101700A1 (en) * 2018-11-16 2020-05-22 Hewlett-Packard Development Company, L.P. Magnetic carrier bead separation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786439A (en) * 1953-06-30 1957-03-26 Rca Corp Electrophotographic developing apparatus
DE1743873U (en) * 1957-02-18 1957-04-25 Peter Peller Elektromeschanisc DEVICE FOR COATING PREFERABLY ELECTROSTATICALLY CHARGED PAPER OD. DGL. AREA.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772898A1 (en) * 1967-12-29 1971-06-16 Addressograph Multigraph Method and device for fixing toners

Also Published As

Publication number Publication date
DE1105720B (en) 1961-04-27
US2961932A (en) 1960-11-29

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