Electrophotography – Image formation – Photoconductive member
Reexamination Certificate
2008-01-30
2011-10-18
Kim, Kiho (Department: 2884)
Electrophotography
Image formation
Photoconductive member
Reexamination Certificate
active
08041262
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.
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Carter Daniel L.
Foster Larry Steven
Siders Lowell Thomas
Spencer Brian Reed
Triplett Edward Lynn
Kim Kiho
Lexmark International Inc.
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