COMPOSITION OF DRY ELECTROSTATIC COPYING DEVELOPER

摘要

PURPOSE: To obtain a fine dry developer material having superior flowability and uniform electrostatic chargeability. CONSTITUTION: This dry developer compsn. for electrostatic copying contains toner particles contg. fluorinated inorg. microscopic particles and an acidic resin binder having 10-30mgKOH/g acid value, does not contain an electric charge controlling agent and can be negatively charged.