Browse Prior Art Database

Xerographic Photoconductor Manufacture

IP.com Disclosure Number: IPCOM000044696D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Goldstein, HA: AUTHOR [+2]

Abstract

The dye chloro diane blue (CDB), which is manufactured and used in powder form, is stored as compressed pellets, bricks or cubes.

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Xerographic Photoconductor Manufacture

The dye chloro diane blue (CDB), which is manufactured and used in powder form, is stored as compressed pellets, bricks or cubes.

The coating ink from which a xerographic photoconductor is manufactured is a mixture of solvents, liquids and powdery solids, including CDB powder. Storage and handling of this powder is simplified by compressing the powder into l00-gram and 300-gram pellets.

Pelletizing is achieved by using a metal die and a ram which exerts a pressure in the range of 750 psi on a pre-weighed CDB powder mass. The resulting pellets are then stored in an air- and water-tight container.

When a coating ink is being mixed or formulated, the required number of pellets, for example, enough pellets to equal 700 grams, is placed in a sealed grinding mill. This mill converts the pellets back to a powder, and dispenses the powder, through a sealed conduit, into the ink mixing chamber.

As a result, the space necessary to store the powder, as it awaits use, is substantially reduced, and the manufacturing environment is not subjected to the dust usually associated with dumping a bag of powder into the mixing chamber.

Disclosed anonymously

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