# US 5,700,613 A · Photoconductor for electrophotography

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- Number: US 5,700,613 A
- Document ID: US5700613A
- Status: Granted
- Kind: A
- Application number: 08/586,465
- Filed: 1996-01-11
- Granted: 1997-12-23
- Earliest claimed: 1995-01-11
- Assignees: Fuji Electric Co., Ltd.
- Inventors: Sumitaka Nogami; Michihiro Kitazawa; Katsuhiro Sato
- Web page: https://patentgrep.com/patent/US5700613A

## CPC

- G03G 5/144: {comprising inorganic material}
- G03G 5/0507: {Inorganic compounds}
- G03G 5/0609: {containing oxygen}
- G03G 5/0696: {Phthalocyanines}
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

A photoconductor for electrophotography includes a conductive substrate; an undercoating layer formed on the conductive substrate; a charge generation layer formed on the undercoating layer; and a charge transport layer formed on the charge generation layer, wherein the undercoating layer comprises a coating film containing as the main constituent thereof an addition compound containing iodine added thereto, and wherein the charge generation layer comprises a P-type charge generation material containing iodine added thereto.

## Claims

### Claim 1

A photoconductor for electrophotography, comprising:
a conductive substrate;
an undercoating layer formed on the conductive substrate;
a charge generation layer formed on the undercoating layer; and
a charge transport layer formed on the charge generation layer,
wherein the undercoating layer comprises a coating film containing as the main constituent thereof an addition compound containing iodine added thereto, and
wherein the charge generation layer comprises a P-type charge generation material containing iodine added thereto.

### Claim 2 (depends on 1)

The photoconductor for electrophotography as claimed in claim 1, wherein the P-type charge generation material comprises a phthalocyanine pigment.

### Claim 3 (depends on 2)

The photoconductor for electrophotography as claimed in claim 2, wherein the phthalocyanine pigment is selected from the group consisting of copper, silver, magnesium, zinc, aluminum, titanium, vanadium, iron, silicon, metal halogenide thereof, metal oxide thereof, and mixture thereof.

### Claim 4 (depends on 1)

The photoconductor for electrophotography as claimed in claim 1, wherein the P-type charge generation material comprises a polycyclic quinone pigment.

### Claim 5 (depends on 4)

The photoconductor for electrophotography as claimed in claim 4, wherein the polycyclic quinone pigment is at least one polycyclic quinone pigment selected from the group consisting of polycyclic quinones as represented by general formulas (I), (II), and (III): ##STR2##

### Claim 6 (depends on 1)

The photoconductor for electrography as claimed in claim 1, wherein the p-type charge generation material containing iodine added thereto contains iodine in an amount ranging from 0.001 to 3 moles of iodine per 1 mol of the p-type charge generation material.