Electrophotographic photoreceptor and image forming...

Details Electrophotographic photoreceptor and image forming... Electrophotographic photoreceptor and image forming...

2005-02-08

2005-02-08

Goodrow, John L. (Department: 1756)

Electrophotography

Image formation

Photoconductive member

C399S297000, C430S058050, C430S970000

Reexamination Certificate

active

06853823

ABSTRACT:
An electrophotographic photoreceptor includes an electroconductive substrate. A charge generation layer overlies the electroconductive substrate. A first charge transport layer overlying the charge generation layer includes a first charge transport material (D1) and a first binder resin (R1). A second charge transport layer overlying the first charge transport layer includes a filler, a second charge transport material (D2) and a second binder resin (R2). The first and second charge transport layers have a total thickness of from 5 to 25 μm. A weight ratio (D1/R1) of the first charge transport material (D1) to the first binder resin (R1) in the first charge transport layer is greater than a weight ratio (D2/R2) of the second charge transport material (D2) to the second binder resin (R2) in the second charge transport layer.

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