Browse Prior Art Database

Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


In many electrostatographic copying machines, contaminating dirt generated in the developer housing may be carried out of the developer housing and deposited throughout the machine causing contamination of electrical components, lenses, lamps and preventing photoreceptor discharge. The figure illustrates a seal to minimize this difficulty. In the figure, the electrostatic latent image on the photoreceptor 10 is developed with developer 12 carried into the development zone by developer roll 14. The developer housing rides against the photoreceptor by means of shoes 16 attached to the end of the developer housing, not interferring with the photoreceptor surface in the center of the drum. A floating seal 20 is attached to the developer housing shoes and extends the full length of the developer housing. This seal floats against the developer housing shield and maintains a constant gap between the seal and the photoreceptor thereby mini-mizing the contamination of the machine with developer dirt escaping from the developer housing.