Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Toner for electrophotography and manufacturing method thereof
 A toner for electrophotography comprises a resin, a colorant and a charge controlling agent, wherein the charge controlling agent is substantially present on a surface part of the toner, and wherein the toner has a saturated charge quantity (absolute value) of from about 10-40 .mu.C/g when the toner is mixed with a carrier which is coated with a silicone resin, and a carrier contamination degree not greater then about 20%. 
Ricoh Company, Ltd.
G G G
G03G G03G G03G
inventional inventional inventional
Hiroshi
Yamashita