Electrophotographic photoconductor

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product

Reexamination Certificate

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Reexamination Certificate

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07662529

ABSTRACT:
An electrophotographic photoconductor in which generation of a ghost phenomenon caused by exposure is avoided and potential change before and after continuous printings is insignificant. A functionally separated type electrophotographic photoconductor includes at least a charge generation layer containing a charge generation agent and a charge transport layer containing a charge transport agent, the two layers being sequentially laminated on a conductive substrate. A ratio of the maximum intensity of a halo pattern to a peak intensity of a maximum diffraction peak is less than 0.3 in an X-ray diffraction pattern obtained by a powder method using Cu Kα line of a test coating film produced from a test coating liquid that is prepared by adding the charge transport agent into a coating liquid for the charge generation layer in an equal mass of the charge transport agent to a mass of the charge generation agent.

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“Oxo-phthalocyaninato-titan(IV) (PcTiO)”, by W. Hiller and had a specific gravity of 1.57 (W. Hiller et al., Z. Kristallogr. vol. 159, pp. 173-183 (1982).

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