Invention Grant
US08483602B2 Method for enlarging toner transfer window in EP imaging device and transfer station employing the method
有权
使用该方法在EP成像装置和转运站中扩大调色剂转移窗口的方法
- Patent Title: Method for enlarging toner transfer window in EP imaging device and transfer station employing the method
- Patent Title (中): 使用该方法在EP成像装置和转运站中扩大调色剂转移窗口的方法
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Application No.: US12562341Application Date: 2009-09-18
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Publication No.: US08483602B2Publication Date: 2013-07-09
- Inventor: David William Hullman , Brandon Alden Kemp , Niko Jay Murrell , Ryan James Nelson , Julie Ann Gordon Whitney
- Applicant: David William Hullman , Brandon Alden Kemp , Niko Jay Murrell , Ryan James Nelson , Julie Ann Gordon Whitney
- Applicant Address: US KY Lexington
- Assignee: Lexmark International, Inc.
- Current Assignee: Lexmark International, Inc.
- Current Assignee Address: US KY Lexington
- Main IPC: G03G15/16
- IPC: G03G15/16

Abstract:
A transfer station for toner transfer in an electrophotographic imaging device includes an endless transfer belt transported about an endless path through the imaging device, a transfer roll adjacent one surface of the transfer belt, and a backup roll adjacent an opposite surface of the transfer belt opposite from the transfer roll such that the transfer roll and backup roll form a transfer nip effecting transfer of toner. For the purpose of improved overtransfer performance, an outer layer of a thin polymer coating is applied to at least one of the transfer belt and the rolls so as to be located within the transfer nip with transfer of toner. The polymer layer has a thickness from about 5 μm to about 200 μm, surface resistivity from about 1E08 to about 1E12 Ohm/cm and breakdown strength greater than 500 V.
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