ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD OF IMAGE FORMATION, IMAGE FORMATION APPARATUS AND PROCESS CARTRIDGE FOR IMAGE FORMATION APPARATUS

WIPO Patent Application WO/2005/054957

A1

An electrophotographic photoreceptor excelling in image stability and capable of realizing prolonged durability. There is provided an electrophotographic photoreceptor comprising a conductive support and, sequentially superimposed thereon, at least an undercoat layer, a photosensitive layer and a crosslinked charge transport layer, wherein the undercoat layer is composed of at least two layers of a layer containing an inorganic pigment and a layer containing no inorganic pigment and wherein the crosslinked charge transport layer is formed by hardening of at least a trifunctional or higher functionality radical polymerizable monomer without charge transport structure and a monofunctional radical polymerizable compound with charge transport structure.

TAMOTO NOZOMU (JP)
NIIMI TATSUYA (JP)
SUZUKI TETSURO (JP)
OHTA KATSUICHI (JP)

PCT/JP2004/018229

June 16, 2005

December 01, 2004

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RICOH KK (JP)
TAMOTO NOZOMU (JP)
NIIMI TATSUYA (JP)
SUZUKI TETSURO (JP)
OHTA KATSUICHI (JP)

G03G5/047; G03G5/05; G03G5/06; G03G5/07; G03G5/14; (IPC1-7): G03G5/14; G03G5/07; G03G5/06

JP2002107984A	2002-04-10
JP2001166509A	2001-06-22
JP2002221810A	2002-08-09
JP2002268258A	2002-09-18
JPH0580572A	1993-04-02
JPH0580571A	1993-04-02
JPH08272124A	1996-10-18
JPH04198367A	1992-07-17
JP2002182412A	2002-06-26
JP2002278224A	2002-09-27
JP2000147814A	2000-05-26
JPH05202135A	1993-08-10
JPH01299874A	1989-12-04
JP2003015334A	2003-01-17

See also references of EP 1698943A4
None

Itoh, Tadahiko (Yebisu Garden Place Tower 20-3 Ebisu 4-chom, Shibuya-ku Tokyo 32, JP)

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