CONDUCTIVE CARRIER COMPOSITION AND PREPARATION OF CARRIER PARTICLES

摘要

PROBLEM TO BE SOLVED: To provide the method of manufacturing the electrically conductive carrier composition and the carrier grains capable of keeping the conductance substantially constant and selecting one of wide triboelectrification values. SOLUTION: The carrier grain comprises a core having a coating made of a mixture of a first polymer containing a conductive component, such as carbon black, and a second polymer containing a metal oxide, such as tin oxide.