Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1978-06-21
1980-12-30
Smith, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
118712, 118657, 118658, 252 6253, 252 6254, 252513, 252519, 324 62, 355 3DD, 355 14D, 427 8, 430108, 430109, 430126, 430903, G03G 914, G03G 1509
Patent
active
042424348
ABSTRACT:
In controlling the operation of an electrostatic apparatus to produce a large number of copies from an electrostatic image in a multiple copy process there is utilized a toner substance comprising a magnetic carrier composition in which each particle of the composition comprises a ferromagnetic material and a resin, the effective conductivity of the composition being determined by testing means separate from the electrostatic apparatus such that the effective conductivity is measured while the composition is free of absorbed water vapor and other gases encountered under operating conditions with the electrostatic apparatus.
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Hirakura Koji
Ikeda Itsuo
Ohta Wasaburo
Okuno Zenjiro
Ricoh & Company, Ltd.
Smith John D.
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