GB1070803A - Improvements in or relating to electrostatic image developing apparatus - Google Patents

Improvements in or relating to electrostatic image developing apparatus

Info

Publication number
GB1070803A
GB1070803A GB30916/64A GB3091664A GB1070803A GB 1070803 A GB1070803 A GB 1070803A GB 30916/64 A GB30916/64 A GB 30916/64A GB 3091664 A GB3091664 A GB 3091664A GB 1070803 A GB1070803 A GB 1070803A
Authority
GB
United Kingdom
Prior art keywords
housing
discs
mixture
vanes
electrostatic image
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
GB30916/64A
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.)
Telecom Italia SpA
Olivetti SpA
Original Assignee
Olivetti SpA
Ing C Olivetti and C 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, Ing C Olivetti and C SpA filed Critical Olivetti SpA
Publication of GB1070803A publication Critical patent/GB1070803A/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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/625—Apparatus which relate to the handling of originals, e.g. presence detectors, inverters
    • G03B27/6257—Arrangements for moving an original once or repeatedly to or through an exposure station
    • 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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • 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)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Advancing Webs (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

1,070,803. Electrostatic image developing apparatus. ING. C. OLIVETTI & C S.P.A. Aug.4, 1964 [July 17, 1963], No. 30916/64. Heading G2H. Apparatus for developing a latent electrostatic image comprises a rotating brush member 300 for brushing a mixture of magnetic carrier particles and developer powder 420 which may consist of carbon black with a thermoplastic resin powder, over the image-bearing surface 428 the mixture being held in a housing 412 which is reciprocated with respect to the brush member, and to a plurality of inclined flexible vanes 444 mounted on a rod 440 which is held stationary between side frames 448 whilst sliding in housing 412. The vanes act to circulate the developer mixture. Member (300) Fig. 3 (not shown), comprises a series of iron discs (468) on driven shaft (298) the discs being bent to a wavy form so that as the brush rotates, the magnetic bristles (427) formed between the brush and magnet polepiece (492) are oscillated on the surface of the image-bearing surface. Vanes (444) strike a rod (434) to cause repeated alignment of movable hopper (432) with hole (422) whereby the flow of powder into housing (412) is metered. Pins (464) on shaft (298) angularly spaced by 180‹ alternatively strike triangular cams (460), Fig. 3, on the outside of housing (412) to produce the oscillatory motion. The discs (468) may be replaced by a pattern of holes in a hollow iron cylinder (482) as in Fig. 5 (not shown), or by a wire screen.
GB30916/64A 1963-07-17 1964-08-04 Improvements in or relating to electrostatic image developing apparatus Expired GB1070803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29565263A 1963-07-17 1963-07-17

Publications (1)

Publication Number Publication Date
GB1070803A true GB1070803A (en) 1967-06-01

Family

ID=23138638

Family Applications (2)

Application Number Title Priority Date Filing Date
GB30916/64A Expired GB1070803A (en) 1963-07-17 1964-08-04 Improvements in or relating to electrostatic image developing apparatus
GB30915/64A Expired GB1077107A (en) 1963-07-17 1964-08-04 Improvements in or relating to photocopying machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB30915/64A Expired GB1077107A (en) 1963-07-17 1964-08-04 Improvements in or relating to photocopying machines

Country Status (6)

Country Link
US (1) US3451320A (en)
BE (2) BE650740A (en)
CH (2) CH426485A (en)
DE (2) DE1303330C2 (en)
GB (2) GB1070803A (en)
SE (1) SE307892B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230112A (en) * 1989-03-18 1990-10-10 Hitachi Ltd "Mixer device for electrostatic development apparatus"

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770348A (en) * 1971-03-15 1973-11-06 Pitney Bowes Inc Multiple copy arrangement for photocopy machine
DE2330341C3 (en) * 1973-06-14 1982-06-16 Mita Industrial Co., Ltd., Osaka Projection copier
JPS5348675Y2 (en) * 1973-09-19 1978-11-21
US4023791A (en) * 1975-10-23 1977-05-17 Savin Business Machines Corporation Semi-automatic document feeder
DE69006075T2 (en) * 1989-04-03 1994-05-05 Sharp Kk Sheet conveyor for facsimile machine.
EP1988430B1 (en) * 2007-04-30 2016-06-08 Xeikon Manufacturing Method of printing or copying with spherical toner particles
CN114609877B (en) * 2022-02-17 2023-06-20 景德镇陶瓷大学 Ceramic laser printing system based on magnetic acting force

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574215A (en) * 1947-05-09 1951-11-06 Kunstadter Vilmos Automatic photoprinting and developing apparatus
US2852651A (en) * 1953-11-02 1958-09-16 Haloid Xerox Inc Fusing mechanism for a xerographic copying machine
US2898995A (en) * 1954-03-29 1959-08-11 Rca Corp Demand shear with means to alternately brake and accelerate a continuously moving web
US2741960A (en) * 1954-12-29 1956-04-17 Ibm Record controlled printer
US3115814A (en) * 1955-12-06 1963-12-31 Edward K Kaprelian Offset electrophotography
US3005388A (en) * 1956-03-28 1961-10-24 Lumoprint Zindler Kg Electrophotographic copying device
GB842032A (en) * 1956-10-22 1960-07-20 Werner Zindler Improvements in or relating to copying apparatus
US2905242A (en) * 1958-05-05 1959-09-22 Aluminum Co Of America Production control and recording system
US2979026A (en) * 1958-06-19 1961-04-11 Rca Corp Film viewer and reproducer
US3062094A (en) * 1958-12-29 1962-11-06 Xerox Corp Electrophotographic copying apparatus
US3088386A (en) * 1959-11-16 1963-05-07 American Photocopy Equip Co Electrophotographic photocopy machine
US3131594A (en) * 1960-04-04 1964-05-05 Xerox Corp Image scanning apparatus
US3091169A (en) * 1960-06-29 1963-05-28 Ditto Inc Automatic photoprinting machine
US3053962A (en) * 1960-08-01 1962-09-11 Xerox Corp Xerographic fusing apparatus
US3117891A (en) * 1960-09-26 1964-01-14 Xerox Corp Xerographic apparatus
US3143947A (en) * 1960-11-18 1964-08-11 Lumoprint Zindler Kg Accessory apparatus for copying devices and a copying device therefor
US3181420A (en) * 1963-05-23 1965-05-04 American Photocopy Equip Co Copying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230112A (en) * 1989-03-18 1990-10-10 Hitachi Ltd "Mixer device for electrostatic development apparatus"

Also Published As

Publication number Publication date
CH426485A (en) 1966-12-15
DE1303330C2 (en) 1973-03-29
BE650740A (en) 1964-11-16
BE650739A (en) 1964-11-16
US3451320A (en) 1969-06-24
DE1303330B (en) 1972-08-31
CH425471A (en) 1966-11-30
SE307892B (en) 1969-01-20
GB1077107A (en) 1967-07-26
DE1497020A1 (en) 1969-04-30

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