GB937122A - Improvements in or relating to the removal of unfixed powder developer from electrophotographic surfaces - Google Patents

Improvements in or relating to the removal of unfixed powder developer from electrophotographic surfaces

Info

Publication number
GB937122A
GB937122A GB72360A GB72360A GB937122A GB 937122 A GB937122 A GB 937122A GB 72360 A GB72360 A GB 72360A GB 72360 A GB72360 A GB 72360A GB 937122 A GB937122 A GB 937122A
Authority
GB
United Kingdom
Prior art keywords
cellulose
particles
relating
removal
silicon dioxide
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
GB72360A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Publication of GB937122A publication Critical patent/GB937122A/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
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/005—Materials for treating the recording members, e.g. for cleaning, reactivating, polishing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

For removing unfixed developer powder from a developed electrophotographic surface (see Group XX) there is flowed over it a mixture of finely divided particles of etherified cellulose and of natural or synthetic silicon dioxide of average particle size not less than 1 micron. The etherified cellulose component which preferably is present as particles of 200 to 600 microns average zone may be methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, methylhydroxyethyl cellulose, carboxymethyl cellulose, benzyl cellulose, or acids such as cellulose glycolic acid or the sodium salt thereof. Nonetherified cellulose may also be present. The silicon dioxide particles are preferably of 5 to 20 microns average zone and may comprise natural kieselguhr.
GB72360A 1959-01-14 1960-01-08 Improvements in or relating to the removal of unfixed powder developer from electrophotographic surfaces Expired GB937122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK36721A DE1107078B (en) 1959-01-14 1959-01-14 Process for the removal of developer powder from unfixed electrophotographic copy layers

Publications (1)

Publication Number Publication Date
GB937122A true GB937122A (en) 1963-09-18

Family

ID=7220777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB72360A Expired GB937122A (en) 1959-01-14 1960-01-08 Improvements in or relating to the removal of unfixed powder developer from electrophotographic surfaces

Country Status (4)

Country Link
DE (1) DE1107078B (en)
FR (1) FR1245265A (en)
GB (1) GB937122A (en)
NL (1) NL247345A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220390A (en) * 1987-11-11 1993-06-15 Minolta Camera Kabushiki Kaisha Electrophotographic image forming process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484782A (en) * 1948-02-27 1949-10-11 Haloid Co Method of removing electroscopic powder from an electrophotographic plate

Also Published As

Publication number Publication date
FR1245265A (en) 1960-11-04
NL247345A (en)
DE1107078B (en) 1961-05-18

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