ABSTRACT
The first organic photoreceptor used in a copier was based on the charge-transfer complex formed between poly(N-vinylcarbazole) (PVK) and 2,3,7-trinitro-9-fluorenone (TNF), introduced in the IBM Copier I in 1970. In 1975, Eastman Kodak Company intro duced the dye-polymer aggregate photoreceptor in the Kodak Ektaprint 100 copier. Both the PVK:TNF and the aggregate photoreceptors were coated on a flexible web substrate
and then fabricated into a loop configuration. The PVK:TNF and dye-polymer aggregate technologies demonstrated the suitability of organic photoreceptors for high-volume, highquality xerographic applications.
