Browse Prior Art Database

Organic Photoconductive Drum Polishing Tool for IBM 3170 Full Color Digital Printer

IP.com Disclosure Number: IPCOM000118455D
Original Publication Date: 1997-Feb-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Lee, HC: AUTHOR [+4]

Abstract

Disclosed is a methodology for polishing an Organic Photoconductive (OPC) drum in an electrophotographic printer, without removing the drum from the printer.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 59% of the total text.

Organic Photoconductive Drum Polishing Tool for IBM 3170 Full Color
Digital Printer

      Disclosed is a methodology for polishing an Organic
Photoconductive (OPC) drum in an electrophotographic printer, without
removing the drum from the printer.

      It is desirable to polish an OPC drum in an electrophotographic
printer in order to remove surface defects, such as scratches.  It is
also desirable to allow the drum to remain in position during the
polishing operation.  A polishing tool designed to do this makes use
of the cleaning station that is in contact with the OPC drum.  The
cleaning brush of the cleaning unit is replaced by a polishing roller
that has a spiral polishing pad around the roller.  Typically, there
is only one complete spiral.  This pad is imbedded into the roller
and protrudes above the roller surface.  As the roller turns, a small
portion of the pad is in contact with the OPC drum, exerting a
constant pressure on the drum.  This pressure moves axially as the
roller rotates due to the spiral nature of the pad.  The pad can be
made of a slightly abrasive material in order to affect the
polishing.

      Alternatively, a polishing sheet can be attached at the leading
edge of the polishing roller.  As the roller rotates, the sheet is
pulled tight and a force is transmitted through the pad to the
polishing paper  and the OPC drum.  Again, the polishing force moves
axially and is confined to a small area defined by the pad geometry.
...