Patent ID: 6901227

Claim:
Apparatus for cleaning particulate material from a moving web in an electrostatic printer/copier comprising: (a) a web-cleaning cartridge having a web-cleaning component adapted to contact a surface of a moving web and to remove particles therefrom; and (b) a support bracket/backup shoe assembly for selectively positioning said web-cleaning cartridge in a web-cleaning position in which said web-cleaning component pressingly engages said surface, said support bracket/backup shoe assembly comprising (i) a bracket housing for releasably supporting said web-cleaning cartridge, and (ii) a backup shoe assembly having a hard surface adapted to contact the web surface opposite that contacted by said web-cleaning component and to resist the force exerted by said web-cleaning component, said backup shoe being mounted at a fixed location along said path, and said bracket housing being pivotally mounted on said backup shoe for movement between an operative position in which said web-cleaning component exerts a substantially uniform pressure on said web, and a service position in which said web-cleaning cartridge is sufficiently spaced from the web to enable the removal of said web-cleaning cartridge from said bracket housing.