Canon Satera LBP3900 User Manual page 56

● If the sub-output tray is being used
❑
Remove any paper jammed in the sub-output tray.
3
If you are using the multi-purpose tray, remove any paper
jammed in the multi-purpose tray, and then close it.
IMPORTANT
If the jammed paper cannot be removed easily, do not try to remove it forcefully but
proceed to the next step.
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