Title:
ELECTROPHOTOGRAPHIC PHOTORECEPTOR
Document Type and Number:
Japanese Patent JP2803610
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To ensure superior electric charge retaining ability, low residual potential and high performance by incorporating oxotitanium phthalocyanine and a thioindigo pigment into an electric charge generating layer.
SOLUTION: This photoreceptor is a laminate type electrophotographic photoreceptor having an electric charge generating layer and an electric charge transferring layer and used in a negatively electrified state and the electric charge generating layer contains oxotitanium phthalocyanine and a thioindigo pigment. A compd. represented by the formula (where each of R1-R4 is H, CH3, Cl or OCH3) is used as the thioindigo pigment and the electric charge generating layer has high electric charge retaining ability. This layer is easily formed with a coating material prepd. by dispersing prescribed amts. of oxotitanium phthalocyanine and the thioindigo pigment in a resin binder and further dispersing them in a solvent.
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Inventors:
Shinya Yamamoto
Application Number:
JP31036195A
Publication Date:
September 24, 1998
Filing Date:
November 29, 1995
Export Citation:
Assignee:
NEC
International Classes:
G03G5/05; G03G5/06; (IPC1-7): G03G5/06; G03G5/05
Domestic Patent References:
| JP337674A |
Attorney, Agent or Firm:
Takahashi Isamu