Electrophotography photosensitive body
First Claim
Patent Images
1. A printer comprising:
- an electrophotography photosensitive body, the electrophotography photosensative body comprising;
a conductive substrate;
a charge generating layer and a charge transport layer on top of said conductive substrate; and
a contact angle, Θ
, of pure water on said charge transport layer that satisfies the equation Θ
>
=94°
; and
a non-magnetic single component developing system, the non-magnetic single component developing system comprising a developing roller, the developing roller comprising a dielectric rubber material.
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Abstract
A function separated laminated electrophotography photosensitive body is equipped with at least a charge generating layer and a charge transport layer on top of a conductive substrate. A contact angle θ of pure water on the charge transport layer satisfies the equation θ>=94°. The resulting organic electrophotography photosensitive body prevents contamination of the photosensitive body surface resulting from component migration from the developing roller and achieves a stable image quality.
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Citations
3 Claims
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1. A printer comprising:
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an electrophotography photosensitive body, the electrophotography photosensative body comprising;
a conductive substrate;
a charge generating layer and a charge transport layer on top of said conductive substrate; and
a contact angle, Θ
, of pure water on said charge transport layer that satisfies the equation Θ
>
=94°
; and
a non-magnetic single component developing system, the non-magnetic single component developing system comprising a developing roller, the developing roller comprising a dielectric rubber material. - View Dependent Claims (2, 3)
said charge transport layer contains at least one of a resin binder of a polydialkyl siloxane-containing polycarbonate having a repeating unit represented by a following general formula (1) wherein each R is independently a C1-C6 alkyl group or an optionally substituted C6-C12 aromatic hydrocarbon group;
B is (CH2)x;
x is an integer from 2-6;
n is from 0-200;
m from 1-50,and another polycarbonate such that, with a weight M of said polydialkyl siloxane-containing polycarbonate and a weight N of said other polycarbonate has a ratio M/N which is greater than 1/4.
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3. An electrophotography photosensitive body as described in claim 2, wherein:
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said polydialkyl siloxane-containing polycarbonate has a repeating unit represented by a following formula (2), wherein, for x, y and z, a ratio of x/(x+y+z) is 0.5-0.95, and a ratio of z/(x+y+z) is 0.0001-0.1;
n=0-200.
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Specification