Canon imageCLASS 2200 Reference Manual page 234

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6-24 Frequently Occurring Paper Jams
Remove the static charge eliminator cleaning brush.
Clean the groove of the static charge eliminator, as shown below.
Insert the brush of the static charge eliminator cleaner into the groove, and carefully move
the brush back and forth in the groove.
When you have finished cleaning the groove, return the static
charge eliminator to its original position.