Document Type and Number:
Japanese Patent JPH0480386
Kind Code:
B2
Abstract:
A photosensitive member for electrophotography comprises a photosensitive layer containing a trisazo pigment represented by the formula: (1) wherein Ar1 is a pyridylene group capable of having a substituent; Ar2 and Ar3 are respectively a pyridylene group or an arylene group each capable of having a substituent; and A is a coupler residue having a phenolic OH group. Because the trisazo pigment has a characteristic central skeleton including the central nitrogen atom and an adjacent pyridylene group, the photosensitive member has a sensitivity region expanded to the near-infrared region and shows a stable charging characteristic during a continuous electrophotographic operation.
Inventors:
MATSUMOTO MASAKAZU
TAKIGUCHI TAKAO
TAKAI HIDEYUKI
TAKIGUCHI TAKAO
TAKAI HIDEYUKI
Application Number:
JP17258086A
Publication Date:
December 18, 1992
Filing Date:
July 22, 1986
Export Citation:
Assignee:
CANON KK
International Classes:
C09B35/378; G03G5/06
Next Patent: METHOD OF CLEANING IRON-BASE SLIDING PART