Browse Prior Art Database

Photoconductor Manufacture

IP.com Disclosure Number: IPCOM000045755D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Ellis, WE: AUTHOR [+4]

Abstract

The xerographic photoconductor constituents CDB and EDA are mixed in a manner that prevents contamination of either the environment or the resulting mixture.

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Photoconductor Manufacture

The xerographic photoconductor constituents CDB and EDA are mixed in a manner that prevents contamination of either the environment or the resulting mixture.

A relatively small, cylindrical vessel 10 provides a mixing chamber for the CDB powder and EDA liquid solvent. EDA is supplied to the vessel under pressure by way of pipe 11 and valve 12. Pipe 11 enters the vessel by way of an internally-located tangential nozzle which causes the solvent to swirl about the vessel's central vertical axis. This action mixes the CDB powder which is at that time dropping from the top of the vessel.

A preweighed bag 13 of CDB is locked to the top of the vessel by means of a locking mechanism 14, 15. The bag is maintained closed during storage, and until members 14, 15 have been coupled, by means of a clamp-and-keeper wire
16. Valve 17 is opened to allow bag 13 to gravity-dump into vessel 10.

The liquid mixture of CDB and EDA is then drained to the photo conductor production process by way of valve 18 and pipe 19.

It is now necessary to clean and dry vessel 10 for reuse. Valves 12, 17 and 18 are closed. Nitrogen now enters vessel 10 by way of valve 21, flow meter 22 and needle valve 23. Valve 24 is then opened to allow the nitrogen to exit vessel 10 by way of pipe 25.

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