FRICTION REDUCTION TECHNIQUE FOR FLEXIBLE BELT PHOTORECEPTORS MEMBER CONTACTS
Original Publication Date: 1990-Apr-30
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
Electrophotographic copiers, duplicators and printers which use flexible belt type photoreceptors often contain rollers or stationary metallic members in intimate contact with the back of the belt for guiding and rotating the belt. The stationary metallic members are used, for example, as (a) back-up plates for charging, cleaning, exposure, (b) reverse bends for development, and (c) as a passive part of the belt drive system. The major problems with these stationary members are (i) that they wear the back surface of the belt causing debris in the form of fine particles which migrate through the machine leading to other sub-system failures and copy quality defects, and (ii) that they can increase the opacity of the belt thereby causing losses in erase or other back-surface illumination energy reaching the photoconductive layer.