EPSON AcuLaser CX11/CX11F Revision B
OPERATING PRINCIPLES Printer Section Operating Principle 90
PRIMARY TRANSFER (DRUM→BELT)
At the “Primary transfer” process, the toner image formed on the drum surface is
transferred to the Belt surface in Photoconductor Unit by 1st BTR (First Bias Transfer
Roll).
The 1st BTR is a conductive roller, and is positively charged by the HVPS. The 1st
BTR contacts the back side of the Belt and charge the back side to positive.
The negatively charged toner image on the drum surface is attracted to the positive
charge on the back side of the Belt, and is transferred to the Belt from the drum.
Figure 2-12. Primary transfer (Drum
→
Belt)
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