Electrophotographic photosensitive member, electrophotographic photosensitive member manufacturing process, process cartridge, and electrophotographic apparatus
First Claim
1. A cylindrical electrophotographic photosensitive member which comprises a cylindrical support and an organic photosensitive layer having a cured surface layer provided on the cylindrical support, wherein;
- a plurality of grooves each having width in the range of from 0.5 μ
m to 40 μ
m are formed on the peripheral surface of said electrophotographic photosensitive member substantially in the peripheral direction of the peripheral surface;
the number of the grooves is from 20 lines to 1,000 lines per 1,000 μ
m in width in the generatrix direction of the peripheral surface;
the peripheral surface of said electrophotographic photosensitive member has a modulus of elastic deformation of from 45% to 65%; and
the peripheral surface of said electrophotographic photosensitive member has a universal hardness value HU of from 150 N/mm2 to 210 N/mm2.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrophotographic photosensitive member is disclosed having a cylindrical support and an organic photosensitive layer provided on the cylindrical support. The peripheral surface of the electrophotographic photosensitive member is composed of grooves formed substantially in its peripheral direction and flat portions, and in the grooves, the number of grooves each having a width in the range of from 0.5 μm to 40 μm is from 20 to 1,000 lines per 1,000 μm in width in the generatrix direction of the peripheral surface of the electrophotographic photosensitive member.
-
Citations
8 Claims
-
1. A cylindrical electrophotographic photosensitive member which comprises a cylindrical support and an organic photosensitive layer having a cured surface layer provided on the cylindrical support, wherein;
-
a plurality of grooves each having width in the range of from 0.5 μ
m to 40 μ
m are formed on the peripheral surface of said electrophotographic photosensitive member substantially in the peripheral direction of the peripheral surface;the number of the grooves is from 20 lines to 1,000 lines per 1,000 μ
m in width in the generatrix direction of the peripheral surface;
the peripheral surface of said electrophotographic photosensitive member has a modulus of elastic deformation of from 45% to 65%; and
the peripheral surface of said electrophotographic photosensitive member has a universal hardness value HU of from 150 N/mm2 to 210 N/mm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification