Drum Unit; Replacing The Drum Unit - Canon iR2025 Reference Manual

Drum Unit

When the drum unit is full of waste toner, the message <Waste toner is full.> appears on the
touch panel display. If you print another 100 pages after this message is displayed, messages
<Waste toner is full.> and <Replace the drum.> are displayed and you cannot print until you
replace the drum unit.
WARNING
Do not throw used drum units into open flames, as they may ignite the toner remaining inside
the unit, and result in burns or a fire.
CAUTION
If you use the machine without inserting the drum unit, <Insert the drum.> appears on the
touch panel display. In this case, turn OFF the main power, and install the drum unit into the
machine.

Replacing the Drum Unit

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Drum Unit

Press the button on the left cover of the main unit, and open the left
cover.
CAUTION
To avoid damage to the drum unit, always open the left cover wider than 50 mm.