The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
May. 18, 2000
Thomas Kurt Hilbert, Spencerport, NY (US);
Jerry Eugene Livadas, Rochester, NY (US);
Scott Thomas Slattery, Brockport, NY (US);
Patricia D. Reuschle, Rochester, NY (US);
Gary Edwin Nichols, Fairport, NY (US);
Michelle Dawn Wise, Hamlin, NY (US);
Cathlyn Y. Yu, Penfield, NY (US);
Donald Steven Hensel, Rochester, NY (US);
Daniel Francis Vespone, Rochester, NY (US);
Christopher Stephen Garcia, Rochester, NY (US);
Thomas Samuel Albrecht, Rochester, NY (US);
Michael E. Jacobs, Rochester, NY (US);
James Robert Carey, Rochester, NY (US);
W. Charles Kasiske, Penfield, NY (US);
Timothy Gilbert Armstrong, Rochester, NY (US);
D. Steven Kepner, Rochester, NY (US);
NexPress Solutions LLC, Rochester, NY (US);
Abstract
A magnetic brush development station for a reproduction apparatus. The magnetic brush development station includes a housing forming, at least in part, a reservoir for developer material. The reservoir has a pressure equalization seal. A mechanism is associated with the housing for readily moving the housing relative to the reproduction apparatus. Another mechanism selectively readily replenishes and/or empties at least one component of developer material with respect to the reservoir. A plurality of augers are located in the housing for mixing developer material within the reservoir. A drive for the augers, extending through the housing, has a seal therefor. A development roller, mounted within the housing, delivers developer material from the reservoir to a development zone. The development roller includes a core magnet inside a shell such that the core magnet and the shell having relative rotation. The core magnet extends less than the entire length of the development roller such that the developer nap on the shell does not extend to the end of the development roller. A metering skive, extending the length of the development roller, controls the quantity of developer material delivered from the reservoir portion of the housing to the development zone. The metering skive is positioned parallel to the longitudinal axis of the development roller at a location upstream in the direction of shell rotation prior to the development zone. Further, a magnetic seal is located in association with the skive at each end of the development roller. The magnetic field of the magnetic seal is sufficient to substantially prevent leakage of developer material from the ends of the development roller.