Sharp MX-C311 Operation Manual page 49

REPLACING SUPPLIES AND MAINTENANCE
Remove the dirty cleaner.
Firmly grasp the tool close to where the cleaner is attached.
Use your other hand to press down on the hook that secures the cleaner and
remove the cleaner.
6
Return the removed cleaner to the toner collection container.
Attach the new cleaner to the cleaning tool.
Firmly grasp the tool close to where the cleaner is attached.
Use your other hand to press down on the hook that secures the cleaner and
remove the cleaner.
7
Make sure that the cleaner is firmly attached to the cleaning tool.
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