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:
Oct. 18, 2011
Filed:
Jan. 30, 2008
Daniel L. Carter, Georgetown, KY (US);
Brian Reed Spencer, Lexington, KY (US);
Larry Steven Foster, Lexington, KY (US);
Lowell Thomas Siders, Nicholasville, KY (US);
Edward Lynn Triplett, Lexington, KY (US);
Daniel L. Carter, Georgetown, KY (US);
Brian Reed Spencer, Lexington, KY (US);
Larry Steven Foster, Lexington, KY (US);
Lowell Thomas Siders, Nicholasville, KY (US);
Edward Lynn Triplett, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A color electrophotographic printing machine has a drive system which includes a first, second and third motor-and-gear-train configurations mounted on a frame and coupled to first, second and third combinations of multiple color developer drive assemblies, multiple color photoconductive drum drive assemblies, a black developer drive assembly and a black photoconductive drum drive assembly. The first and second configurations are operable at first and second motor gear mesh frequencies and the third configuration is operable at a motor gear mesh frequency that can be substantially the same as one of the first and second motor gear mesh frequencies. The first combination includes yellow, cyan and magenta color developer drive assemblies, the second includes yellow and cyan color photoconductive drum drive assemblies, and the third includes a magenta color photoconductive drum drive assembly with the black developer drive assemblies and black photoconductive drum drive assemblies.