Patent Number: 7,132,209

Title: Organophotoreceptor with charge transport material having three arylamino groups

Abstract: Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula ##STR00001## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are, independently, H, an alkyl group, an alkaryl group, or an aryl group; X.sub.1 and X.sub.2 are, independently, a linking group having the formula --(CH.sub.2).sub.m--, branched or linear, where m is an integer between 1 and 20, inclusive, and one or more of the methylene groups is optionally replaced by O, S, C.dbd.O, O.dbd.S.dbd.O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, a NR.sub.5 group, a CHR.sub.6 group, or a CR.sub.7R.sub.8 group where R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are, independently, H, hydroxyl group, thiol group, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group; and Y.sub.1, Y.sub.2, and Y.sub.3 are, independently, an arylamine group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.

Inventors: Grazulevicius; Juozas Vidas (Kaunas, LT), Buika; Gintaras (Kaunas, LT), Jankauskas; Vygintas (Vilnius, LT), Budreckiene; Ruta (Kaunas, LT), Sidaravicius; Jonas (Vilnius, LT), Tokarski; Zbigniew (Woodbury, MN), Jubran; Nusrallah (St. Paul, MN)

Assignee: Samsung Electronics Co., Ltd

International Classification: G03G 5/047 (20060101); C07D 209/82 (20060101)

Expiration Date: 2019-11-07 0:00:00