G - Physics – 03 – G
Patent
G - Physics
03
G
96/52
G03G 9/08 (2006.01)
Patent
CA 1132827
ELECTROPHOTOGRAPHIC TONER Abstract A toner material for use in developing images in an electrostatographic device is disclosed. The toner particles are initially classified according to a size distribution wherein less than 15% by weight are greater than 16 microns, between 7 and 15% by weight are less than 5 microns the remainder being from 5 to 16 microns and wherein the median particle size by weight is from 8 to 12 microns. The toner is used in a developer mix with carrier particles, and preferably the toner carrier mix is equilibrated such that the action of the developer mix and the machine provide a toner particle size distribution wherein less than 12% by weight are greater than 16 microns, between 15 and 30% by weight are less than 5 microns, the remainder being from 5 to 16 microns, and wherein the median particle size by weight is between 6.5 and 9.5 microns. An equilibrated toner particle distribution is also disclosed.
307348
Abbott Jerry J.
Fuller Sterritt R.
Jachimiak Paul D.
Barrett B.p.
International Business Machines Corporation
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