| 摘要 |
PURPOSE:To obtain a developer having a long service life, capable of maintaining initial high-grade image quality in repeated copying over a very long period of time without deterioration and capable of maintaining high image quality independently of a change in temp. and humidity. CONSTITUTION:This two-component developer for electrophotography consists of a toner contg. at least acidic carbon black and a carrier obtd. by coating at least part of a core material with a resin system contg. a copolymer of vinylidene chloride with at least one kind of monomer having an unsatd. double bond copolymerizable with vinylidene chloride. |
