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C3400n User’s Guide
89
Replacing the belt unit
The belt unit is located under the four image drums. This unit
requires replacement approximately every 50,000 pages.
Switch off the printer and allow the fuser to cool for about
10 minutes before opening the cover.
1. Press the cover release and open the printer’s top cover fully.
cover open button_F5_23.jpg
2. Note the positions of the 4 cartridges. It is essential that they go
back in the same order.
ID Positions_Fig1_04.jpg
WARNING!
If the printer has been powered on, the fuser will be hot.
This area is clearly labelled. Do not touch.
1. Cyan cartridge 2. Magenta cartridge
3. Yellow cartridge 4. Black cartridge