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Xerographic Photoconductor

IP.com Disclosure Number: IPCOM000048025D
Original Publication Date: 1983-Nov-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Bowden, LD: AUTHOR [+4]

Abstract

An organic electrophotographic photoconductor is provided which is highly sensitive in the infrared (IR) region, and is thus useful in xerographic printers having gallium arsenide lasers.

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Xerographic Photoconductor

An organic electrophotographic photoconductor is provided which is highly sensitive in the infrared (IR) region, and is thus useful in xerographic printers having gallium arsenide lasers.

This photoconductor comprises an aluminized polyethylene terephthalate substrate whose aluminum surface is coated with an IR sensitive charge generating layer (CGL), predominately of the aggregate species and whose CGL is then coated with a charge-transport layer (CTL) of any acceptable formulation, for example, DEH, DEASP or pitolyhydrazone.

The CGL is prepared as follows: 3.35 grams of polycarbonate resin (the brand Merlon 60 by Mobay Chemical Company) is dissolved in 49 milliliters of methylene chloride, l milliliter of toluene and 2 drops of a l0% DC-200 polysiloxane methylene chloride solution. A second solution is made by dissolving 0.l7 gram of hydroxy squarylium dye (OHSQ) in 3 milliliters of ethylene diamine. This second solution is effected when the dye particles no longer can be observed, and the solution appears to be straw colored.

The first solution is now added to the second solution, with agitation. A squarylium monomer peak is formed at 650 nanometers.

The resulting solution is now coated, to a thickness of about 0.l milligram per square inch, as the above-mentioned CGL.

Another binder which can be used, replacing the Merlon 60, is the brand Santolite (Monsanto Chemical Co.) aromatic sulfonamide-formaldehyde resin.

Anonymous

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