Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
161 words
A layered photosensitive imaging member which comprises from the bottom up: (a) an electrically conductive substrate; (b) a layer of material capable of injecting holes into a layer on its surface, this layer being comprised of materials selected from the group consisting of carbon dispersed in a polymer and graphite dispersed in a polymer; (c) a hole transport layer in operative contact with the layer of hole injecting material, which transport layer comprises a combination of a highly insulating organic resin having dispersed therein small molecules of an electrically active material, the combination of which is substantially non-absorbing to visible light but allows injection of photogenerated holes from a charge generator in contact with the hole transport layer and electrically induced holes from the layer of injecting material; (d) a layer of charge generating photoconductive material on and in operative contact with the charge transport layer; and (e) a layer of insulating organic resin overlaying the layer of charge generating material.
Claim 2
Dependent Claim
161 words
A layered photosensitive imaging member which comprises from the bottom up: (a) an electrically conductive substrate; (b) a layer of material capable of injecting holes into a layer on its surface, this layer being comprised of materials selected from the group consisting of carbon dispersed in a polymer and graphite dispersed in a polymer; (c) a hole transport layer in operative contact with the layer of hole injecting material, which transport layer comprises a combination of a highly insulating organic resin having dispersed therein small molecules of an electrically active material, the combination of which is substantially non-absorbing to visible light but allows injection of photogenerated holes from a charge generator in contact with the hole transport layer and electrically induced holes from the layer of injecting material; (d) a layer of charge generating photoconductive material on and in operative contact with the charge transport layer; and (e) a layer of insulating organic resin overlaying the layer of charge generating material.
Claim 3
Dependent Claim
20 words
An imaging member in accordance with claim 1 wherein the hole injecting material is carbon black dispersed in a polyester.
Claim 4
Dependent Claim
19 words
An imaging member in accordance with claim 1 wherein the hole injecting material is graphite dispersed in a polyester.
Claim 5
Dependent Claim
16 words
An imaging member in accordance with claim 1 wherein the substrate is a polyethylene terphthalate film.
Claim 6
Dependent Claim
24 words
An imaging member in accordance with claim 1 wherein the ratio of polymer to carbon black or graphite ranges from about 0.5:1 to 2:1.
Claim 7
Dependent Claim
27 words
An imaging member in accordance with claim 1 wherein the hole injecting electrode has a thickness in the range of from about 1 to about 20 microns.
Claim 8
Dependent Claim
27 words
An imaging member in accordance with claim 1 wherein the hole injecting electrode has a thickness in the range of from about 4 to about 10 microns.
Claim 9
Dependent Claim
55 words
An imaging member in accordance with claim 1 wherein the electrically active material dispersed in the insulating organic resin is a nitrogen containing compound of the formula: ##STR2## wherein X is selected from the group consisting of (ortho) CH 3 , (meta) CH 3 , (para) CH 3 , (ortho) Cl, (meta) Cl, (para) Cl.
Claim 10
Dependent Claim
24 words
An imaging member in accordance with claim 8 wherein the hole transport layer contains from about 10 to 75% of the nitrogen containing composition.
Claim 11
Dependent Claim
15 words
An imaging member in accordance with claim 1 wherein the transport layer is N,N'-diphenyl-N,N'-bis(3-methyl phenyl)-[1,1'-biphenyl]-4,4'-diamine.
Claim 12
Dependent Claim
33 words
An imaging member in accordance with claim 1 wherein the charge generating photoconductive layer is selected from the group consisting of amorphous selenium, trigonal selenium, arsenic triselenide, metal free phthalocyanines and metal phthalocyanines.
Claim 13
Dependent Claim
17 words
An imaging member in accordance with claim 11 wherein the charge generating photoconductive layer is amorphous selenium.
Claim 14
Dependent Claim
17 words
An imaging member in accordance with claim 11 wherein the charge generating photoconductive layer is trigonal selenium.
Claim 15
Dependent Claim
14 words
An imaging member in accordance with claim 11 wherein the phthalocyanine is vanadyl phthalocyanine.
Claim 16
Dependent Claim
15 words
An imaging member in accordance with claim 1 wherein layer (e) is a polyurethane resin.