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Incrementing Drum Balancing System

IP.com Disclosure Number: IPCOM000101124D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 1 page(s) / 38K

Publishing Venue

IBM

Related People

Curran, WF: AUTHOR [+3]

Abstract

In an incrementing photoconductor (PC) drum as the PC is moved on demand from the supply reel to the take-up reel, a dynamic imbalance occurs in the drum assembly resulting in a drum velocity variation. A method is described to compensate for the weight shift in the drum assembly as the PC is advanced.

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Incrementing Drum Balancing System

       In an incrementing photoconductor (PC) drum as the PC is
moved on demand from the supply reel to the take-up reel, a dynamic
imbalance occurs in the drum assembly resulting in a drum velocity
variation.  A method is described to compensate for the weight shift
in the drum assembly as the PC is advanced.

      Photoconductor 10 is advanced on demand from supply reel 11
around drum 12 to take-up reel 13 by means of gear drive systems 13
and 14.  Initially the drum system containing a full supply reel is
dynamically balanced with static weights 15.

      As a PC advance is activated, drive systems 13 and 14 move the
take-up reel (taking up used PC) and at the same time drive threaded
shaft 16.  Dynamic weight 17 initially in the position noted in the
figure (initial dynamic balance) is coupled to threaded shaft 17 and
moves in the direction of the supply reel side.

      Thus, as PC advances are made, the shift in weight due to
additional PC on take-up reel 13 is compensated for by the movement
of dynamic weight 17.