CARBON GROUND TRANSFER ASSIST BLADE MECHANISM
Original Publication Date: 1999-Apr-30
Included in the Prior Art Database: 2004-Apr-09
Xerox Disclosure Journal
Disclosed is a method for grounding the actuation petals of a Transfer Assist Blade (TAB) to the frame of an electrophotographic printing machine. As shown in Figure 1, a carbon grounding brush assembly 10 mounts to a machine frame 12 that forms part of a TAB system 14. Grounding brush assembly 10 provides an electrical current ground path for each of a plurality of actuation petals 16 to bleed off electrostatic charges thereon without arcing even if the ground path is broken momentarily. The grounding brush assembly 10 is comprised of multiple rows of carbon fibers 18 embedded in a conductive polymer substrate. The carbon fibers 18 are resistant to wear and do not leave an insulating residue on the actuation petals 16. In Figure 2, the carbon fibers 18 of the grounding brush assembly 10 contact actuation petals 16 at a location 20 where there is little movement relative to the frame 12. The carbon fibers 18 are flexible and remain in contact with the actuation petals 16 through any movement.