Fusing; Clean - Epson EPL-N4000 Service Manual

EPSON EPL-N4000/EPL-N4000+

2.4.6 Fusing

When a sheet of paper leaves the transfer area, static electricity holds
the unfused toner image to the surface of the paper. After transfer, the
paper moves to the Fuser where it passes between the Heat Roll and
the Pressure Roll. The combination of heat and pressure melts the
toner image and bonds it permanently to the paper. The fused sheet of
paper is then transported to the output tray.
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Figure 2-30. Fusing
Rev.B

2.4.7 Clean

The Cleaning Blade removes any toner that remains on the drum after
the transfer process. The toner that the Cleaning Blade removes is
collected inside the sealed EP Cartridge. Toner that is reclaimed from
the drum is not reused by the EP Cartridge.
Toner collected by cleaning is collected as left toner
and kept in the different room from that for the
unused toner. Transfer efficiency is more than 90%.
Transfer efficiency varies by the printing rate,
humidity environment. Also, left toner is not reused.
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Figure 2-31. Cleaning
Chapter 2 Operating Principles
73