| 摘要 |
<p>PURPOSE: To provide the toner and developer compositions exhibiting an improved LC50 value, favorable to environment and having a superior electrical characteristic. CONSTITUTION: This composition contains a toner resin such as a styrene-n-butyl methacrylate copolymer, 0.35-0.65wt.% at least one kind of pyridinium compd. such as cetylpyridinium chloride or its hydride and 1-2wt.% at least one kind of quaternary ammonium salt such as distearyldimethylammonium sulfate.</p> |
