Browse Prior Art Database

Original Publication Date: 1998-Oct-31
Included in the Prior Art Database: 2004-Apr-08

Publishing Venue

Xerox Disclosure Journal


Disclosed is the use of a soft, flexible curtain-like baffle that prevents bead loss on the inlet side of a developer housing. At certain developer roll speeds, beads may be thrown out of the housing by means of centrifugal force. Normal design procedure increases the strength or changes the location of a magnet inside the developer roll. However, magnet redesigns may not be the best option. In designing a means for returning beads back to the developer housing, one must recognize the existence of a gap between the developer housing and a photoreceptor that beads pass through when exiting the housing. Any such bead returning device must work with the gap constraint, as well as when in contact with the photoreceptor. Thus, the bead baffle is made from a plastic film that is held in contact with the photoreceptor. The plastic film must be relatively soft to minimize abrasion of the photoreceptor surface when contact occurs.