GB1336741A - Development apparatus for latent electrostatic images - Google Patents

Development apparatus for latent electrostatic images

Info

Publication number
GB1336741A
GB1336741A GB5268070A GB5268070A GB1336741A GB 1336741 A GB1336741 A GB 1336741A GB 5268070 A GB5268070 A GB 5268070A GB 5268070 A GB5268070 A GB 5268070A GB 1336741 A GB1336741 A GB 1336741A
Authority
GB
United Kingdom
Prior art keywords
trips
pins
switch
toner
cloud
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
GB5268070A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1336741A publication Critical patent/GB1336741A/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
    • G03G15/0803—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer in a powder cloud
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/05—Fluidized bed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

1336741 Powder cloud developing apparatus XEROX CORP 5 Nov 1970 [7 Nov 1969] 52680/70 Heading G2H A latest electrostatic image on a photo-conductive surface 108 is developed in a chamber 104 by a cloud of toner from a generator 146, 149, the toner cloud being mixed with ions blown from a corona discharge electrode 136, swirling upwards past the sides of an insulating baffle 130 and being directed by an electrically biased grid electrode 124 on to the latest image. Excess toner may be removed by a filter 162 and blower 164 or by a grounded electrode, brush or scraper (all not shown). In operation, a xerographic plate 106 bearing the surface 108 is fed under a backing plate 102, and trips a switch S 1 , which switches off the plate drive and inflates elements 110 to raise chamber 104 and seal it against surface 108. Pins 179 fired to the chamber pass through holes in backing plate 102 to position surface 108 and one of item pins trips a switch S 2 to begin a developing cycle. After development the removal of pins 179 trips a switch S 3 to restart the xerographic plate feed.
GB5268070A 1969-11-07 1970-11-05 Development apparatus for latent electrostatic images Expired GB1336741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87474669A 1969-11-07 1969-11-07

Publications (1)

Publication Number Publication Date
GB1336741A true GB1336741A (en) 1973-11-07

Family

ID=25364478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5268070A Expired GB1336741A (en) 1969-11-07 1970-11-05 Development apparatus for latent electrostatic images

Country Status (11)

Country Link
US (1) US3640246A (en)
JP (1) JPS5028179B1 (en)
AT (1) AT319044B (en)
BE (1) BE758632A (en)
CH (1) CH527453A (en)
DE (1) DE2054081A1 (en)
ES (1) ES385187A1 (en)
FR (1) FR2072347A5 (en)
GB (1) GB1336741A (en)
NL (1) NL7016048A (en)
SE (1) SE363411B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871328A (en) * 1972-04-13 1975-03-18 William P English Coating chamber
US3809012A (en) * 1972-11-24 1974-05-07 Xerox Corp Developer seal
US3924568A (en) * 1973-01-15 1975-12-09 Xerox Corp Apparatus for developing latent electrostatic images
US3861354A (en) * 1973-05-02 1975-01-21 Xonics Inc Electrostatic image developer
US3953618A (en) * 1973-05-02 1976-04-27 Xonics, Inc. Electrostatic image developing process
US3865079A (en) * 1973-08-27 1975-02-11 Gen Motors Corp Electrostatic fluid bed powder coating system
US3916826A (en) * 1973-09-18 1975-11-04 Electrostatic Equip Corp Electrostatic coating apparatus
US4038943A (en) * 1974-06-05 1977-08-02 Xerox Corporation Signal amplification by charging and illuminating a partially developed latent electrostatic image
US4033292A (en) * 1974-11-21 1977-07-05 Xerox Corporation Apparatus for developing latent electrostatic images
US3974796A (en) * 1974-11-21 1976-08-17 Xerox Corporation Dual mode apparatus for developing latent electrostatic images
US4088093A (en) * 1976-04-13 1978-05-09 Continental Can Company, Inc. Web coating and powder feed
JPS6254321U (en) * 1985-09-04 1987-04-04
US5093217A (en) * 1989-10-11 1992-03-03 Rca Thomson Licensing Corporation Apparatus and method for manufacturing a screen assembly for a crt utilizing a grid-developing electrode
US6489777B2 (en) * 2001-01-29 2002-12-03 Xerox Corporation System for purging electrostatic voltmeter modulator assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725304A (en) * 1951-08-31 1955-11-29 Haloid Co Process for developing an electrostatic latent image
US2824813A (en) * 1952-05-12 1958-02-25 Haloid Co Method for developing electrostatic latent images
US2877132A (en) * 1955-02-18 1959-03-10 Haloid Xerox Inc Method for development of electrostatic images
US2859127A (en) * 1955-05-13 1958-11-04 Haloid Xerox Inc Process for developing electrostatic images
US2914221A (en) * 1955-08-16 1959-11-24 Haloid Xerox Inc Aerosol bomb development
US2842456A (en) * 1955-08-30 1958-07-08 Battelle Development Corp Process for developing an electrostatic image
US3295440A (en) * 1964-05-27 1967-01-03 Continental Can Co Electrostatic printing method and apparatus employing corona discharge means
US3382360A (en) * 1965-09-10 1968-05-07 Xerox Corp Xerographic charging system having means for providing an air cushion between the charging device and the xerographic drum

Also Published As

Publication number Publication date
ES385187A1 (en) 1973-07-16
US3640246A (en) 1972-02-08
SU505386A3 (en) 1976-02-28
SE363411B (en) 1974-01-14
JPS5028179B1 (en) 1975-09-12
CH527453A (en) 1972-08-31
FR2072347A5 (en) 1971-09-24
BE758632A (en) 1971-05-06
DE2054081A1 (en) 1971-05-19
AT319044B (en) 1974-11-25
NL7016048A (en) 1971-05-11

Similar Documents

Publication Publication Date Title
GB1336741A (en) Development apparatus for latent electrostatic images
GB1435655A (en) Electrophotographic method and apparatus
GB1476337A (en) Electrographic apparatus
US3944356A (en) Charging apparatus
GB1450690A (en) Electrophotography
GB1196637A (en) Apparatus for Reducing Unwanted Powder Cloud Development
US3794839A (en) Corona generating apparatus
US3882822A (en) Apparatus for Developing Electrostatic Latent Images
GB1485588A (en) Image recording system
US3335274A (en) Xerographic charging apparatus with means to automatically control the potential applied to the corona wire
US3598991A (en) Electrostatic charging device having a spark gap voltage regulator between a corona source and a voltage source
GB1214512A (en) Developing electrostatic images
US3650619A (en) Switching detector
GB1522092A (en) Electrophotography
GB1306821A (en)
GB1374923A (en) Electrostatic reproduction apparatus
US3851229A (en) Current measuring device
US3650618A (en) Switching detector
US3357400A (en) Electrostatic apparatus for paper detacking
US3851962A (en) Electrostatic hold down apparatus
US3650617A (en) Switching detector
GB1076595A (en) Electrostatic developing apparatus and method
GB1258738A (en)
GB1411708A (en) Hybrid development of electrostatic latent images
GB1300776A (en) Improved electrostatic liquid developing apparatus

Legal Events

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