Canon Satera LBP-5600SE User Manual page 127

18
Make sure that the levers near the drum cartridge guides on
the both sides are in the proper position as shown in the
figure.
Lever Lever
If the levers are not in the proper position, the drum cartridges cannot be
installed. Raise the levers to the proper position as shown in the figure.
- Incorrect position - Correct position
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