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Configuration for Containing Mix Beads in a Photoconductor Drum

IP.com Disclosure Number: IPCOM000040008D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Bierschbach, JE Rhodes, WT Rosati, AA [+details]

Abstract

In a drum configuration using an incrementing photoconductor (PC), developer mix beads can work themselves into the drum past the seal and randomly be advanced onto the surface of the drum underneath the PC, resulting in a copy quality service call. (Image Omitted) Strip magnets placed next to the surface seals have been used to alleviate this problem. An improvement in the incrementing drum configuration is described which further reduces the problem. In an incrementing drum configuration (see figure) unused PC 10 is advanced from supply spool 11 past seal 12 around rotating drum 13 and back into the drum onto take-up spool 14 as used PC. In the normal configuration, the direction of the PC travel is the same as the rotating drum.