HP LaserJet PRO M521 Repair Manua page 175

Table 2-15
Ref Description
1 Tray sensor PCA
2 Fuser motor assembly
3 Paper-delivery roller assembly
4 Face-down roller assembly
5 Photo interrupter, IC
6 Spring, torsion
ENWW
Internal assemblies (6 of 6)
Part number
RM1-8620-000CN
RM1-8523-000CN
RM1-6301-000CN
RM1-6311-000CN
WG8-5935-000CN
RC2-8554-000CN
Internal assemblies (6 of 6)
Qty
1
1
4
1
2
1
165