BELT LOADING DISC
Original Publication Date: 1980-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In an electrophotographic printing machine, a flexible photoconductive belt is frequently supported on a plurality of support rollers. One type of support roller employs a multiplicity of spaced discs to prevent lateral translation of the belt during the movement thereof along a predetermined path. In general, the life of a photoconductive belt is finite. Frequently, the photoconductive belt must be replaced after approximately 40,000 copies. This may pose a problem in that the discs on the support roller tend to prevent sliding of the belt thereover. In order to obviate this problem, support roller 10 includes a load disc 12 having a diameter greater than that of support discs 14. In this way, belt 16 may be readily slipped over discs 14 since the belt must initially slide over disc 12. Preferably, disc 12 is slightly larger than disc 14; i.e., the diameter thereof is about one to two millimeters greater than that of discs 14. When belt 16 is installed over disc 12, belt 16 is guided away from discs 14 on roller 10. This reduces belt-to-roll contact thereby permitting easier belt removal or replacement.