Photosensitive member and image forming apparatus having the same
First Claim
Patent Images
1. An image forming apparatus comprising:
- a photosensitive member composed by consecutively laminating at least a photoconductive layer containing amorphous Si and an abraded surface protective layer on an electrically conductive substrate;
a charger for charging said photosensitive member;
an exposing device for forming an electrostatic latent image on said photosensitive member which is charged; and
a developing device for visualizing said electrostatic latent image with a developer, wherein an average inclination Δ
a within a range of 10 μ
m×
10 μ
m of the surface of said photosensitive member is within a range of 0.12 to 1.0 by abrading the surface of the photosensitive member, wherein said average inclination Δ
a is calculated from three dimensional forms measured with an atomic force microscope, wherein said developer used in said developing device contains a toner and charging acceleration particles having electrical conductivity, and wherein said charger is an electrically conductive elastic contact charging roller comprising a medium resistance layer of rubber or foaming material on a core metal as a flexible member, and the medium resistance layer having a resistance from 1×
104 to 1×
107 Ω
.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide an amorphous Si photosensitive member and an image forming apparatus which form favorable images by preventing toner adhesion at a cleaning time. A photoconductive layer 102 containing amorphous Si is formed on an electrically conductive substrate 101 so that a surface of a photosensitive member has an average inclination Δa within a range of 0.12 to 1.0, more preferably 0.15 to 0.8 within a range of 10 μm×10 μm, and an electrically conductive substrate has surface roughness Ra within the range of 10 μm×10 μm is lower than 9 nm, preferably lower than 6 nm.
-
Citations
7 Claims
-
1. An image forming apparatus comprising:
-
a photosensitive member composed by consecutively laminating at least a photoconductive layer containing amorphous Si and an abraded surface protective layer on an electrically conductive substrate;
a charger for charging said photosensitive member;
an exposing device for forming an electrostatic latent image on said photosensitive member which is charged; and
a developing device for visualizing said electrostatic latent image with a developer, wherein an average inclination Δ
a within a range of 10 μ
m×
10 μ
m of the surface of said photosensitive member is within a range of 0.12 to 1.0 by abrading the surface of the photosensitive member,wherein said average inclination Δ
a is calculated from three dimensional forms measured with an atomic force microscope,wherein said developer used in said developing device contains a toner and charging acceleration particles having electrical conductivity, and wherein said charger is an electrically conductive elastic contact charging roller comprising a medium resistance layer of rubber or foaming material on a core metal as a flexible member, and the medium resistance layer having a resistance from 1×
104 to 1×
107 Ω
.- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification