Patent Number: 7,708,377

Title: Blade engagement apparatus for image forming machines

Abstract: A blade engagement apparatus for metering release agent onto an image forming device associated moving surface, such as a Solid Ink Jet drum. The blade engagement apparatus includes a blade positioning mechanism having a blade holder rotated about a fixed pivot point disposed a distance L.sub.D from the moving surface. A plurality of metering blades extending from the blade holder each include a blade tip disposed a distance L.sub.B from the pivot point such that L.sub.B is greater than L.sub.D. A replacement blade is brought into a working position in deflected engagement with the moving surface for metering a release agent onto the surface while the used blade is moved into a non-operational suspended position. Various blade replacement strategies are used to initiate a blade replacement operation.

Inventors: Thayer; Bruce E. (Webster, NY), Seyfried; Richard W. (Williamson, NY)

Assignee: Xerox Corporation

International Classification: B41J 2/165 (20060101); G03G 15/08 (20060101); G03G 15/20 (20060101); G03G 21/00 (20060101)

Expiration Date: 5/04/12018