Maintenance 474
Replacing the Drum Cartridge
This section describes how to replace the drum cartridge.
IMPORTANT:
• Protect the drums of the drum cartridge against bright light. If the front cover remains open for more than 3
minutes, print quality may deteriorate.
• Ensure nothing touches or scratches the surface (black-colored film) of the belt unit. Scratches, dirt, or oil from
your hands on the film of the belt unit may reduce print quality.
• Replace the drum cartridge with the printer turned on. If you turn off the printer, print data remaining in the
printer, and information stored on the printer's memory are erased.
This section includes:
• "Removing the Drum Cartridge" on page 475
• "Installing the Drum Cartridge" on page 477
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