Brother HLL3290CDW Service Manual page 299

Assembling Note:
• If you removed the Process drive unit while the Fuser unit was attached on the machine,
remove the Fuser unit once (refer to "9.5 Fuser cover ASSY / Fuser unit") and reattach it
after attaching the Process drive unit.
The Conductive leaf spring of the Fuser unit may be deformed by the Calking shaft.
Calking shaft
Conductive leaf spring
Fuser unit
Fig. 3-96
3-108
Confidential