Developing method

  • Inventors:
  • Assignees: Canon Inc
  • Publication Date: December 08, 1980
  • Publication Number: JP-S55157755-A


PURPOSE: To perform continuous developing without any degradation in copying image quality by supplying the replenishing developer composed of toner particles and fine silica particles to the start developer composed of carrier, toner particles and fine silica particles thereby replenishing the consumption with the development. CONSTITUTION: In the development of an electrophotographic copier using the developer composed of carrier, toner particles and fine silica particles, the replenishment for the developer having been consurned through repetitive develpment is ac complsihed by supplying of toner particles and fine silica particles. The ratio b(wt%) of the fine silica particles to the toner particles in the replenishing developer is made higher than the above-mentioned ratio a(wt%) in the start developer and the ratios a, b are so set as to satisfy the relations shown by 0.01≤ a<b≤5. COPYRIGHT: (C)1980,JPO&Japio




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Patent Citations (21)

    Publication numberPublication dateAssigneeTitle
    DE-1903909-A1September 11, 1969Rank Xerox LtdVorrichtung zur Reinigung der beweglichen Bildflaeche einer elektrostatographischen Bilderzeugungseinrichtung
    GB-1438110-AJune 03, 1976Agfa GevaertDeveloper powder composition
    JP-S50120631-ASeptember 22, 1975
    JP-S51126836-ANovember 05, 1976Shigekazu EnokiMagnetic toner
    JP-S51346-AJanuary 06, 1976Ricoh KkDenshishashinyojikiburashigenzosochi
    JP-S5181623-AJuly 17, 1976Ricoh KkDenshishashinyo tonaa
    JP-S5196331-AAugust 24, 1976
    JP-S52104928-ASeptember 02, 1977Ricoh Co LtdDry developing powder and its production
    JP-S5213935-AFebruary 02, 1977Yoshio Ishida, Kazuo Matsuda, Seiichi MoriBall game machine
    JP-S5219535-AFebruary 14, 1977Ricoh Co LtdDry type developing powder
    JP-S5245936-AApril 12, 1977Canon IncDevice for preventing toners supplied to powder developing apparatus f rom making brides
    JP-S529435-AJanuary 25, 1977Oce Van Der Grinten NvTonor powder and method of manufacturing the same
    JP-S53127725-ANovember 08, 1978Kanebo LtdDeveloping agent for electrostatic printing
    JP-S53133446-ANovember 21, 1978Canon IncDeveloper for magnetic brush
    JP-S5326127-AMarch 10, 1978Ricoh Co LtdToner replenishing process
    JP-S5332263-AMarch 27, 1978Searle & CoCable handling mechanism synchronously driven with rotaly mechanical element
    JP-S5387734-AAugust 02, 1978Ricoh Co LtdElectrophotographic magnetic toner
    JP-S54121129-ASeptember 20, 1979Minolta Camera Co LtdDry type development process in electrophotography
    JP-S5416219-AFebruary 06, 1979Suwa Seikosha Kk, Epson CorpCompact printer
    JP-S542741-AJanuary 10, 1979Canon IncPressure fixing toner
    JP-S5443736-AApril 06, 1979Fuji Xerox Co LtdElectrostatic image developing agent composition and developing method

NO-Patent Citations (0)


Cited By (8)

    Publication numberPublication dateAssigneeTitle
    EP-0468523-A1January 29, 1992Mita Industrial Co. Ltd.Startentwickler
    JP-2008129598-AJune 05, 2008Xerox Corp, ゼロックス コーポレイションXerox CorporationDeveloper cartridge replacement method for electrophotographic printing
    JP-H0119584-B2April 12, 1989Canon Kk
    JP-H03255461-ANovember 14, 1991Tomoegawa Paper Co LtdDeveloping method
    JP-S57168255-AOctober 16, 1982Canon IncTwo-component developer for electrophotography
    JP-S62258472-ANovember 10, 1987Sharp CorpDeveloper for electrostatic copying machine
    US-5082761-AJanuary 21, 1992Sharp Kabushiki KaishaSet of electrophotographic toners
    US-5272040-ADecember 21, 1993Minolta Camera Kabushiki KaishaToner for developing electrostatic latent images