- HP Laserjet Enterprise CP4020/CP4520 Manual

Main-drive assembly
NOTE: Removing the main-drive assembly typically requires more than 2 hours to complete.
Before proceeding, remove the following components:
●
Formatter. See
Formatter PCA on page 78.
●
Intermediate transfer belt (ITB). See
Intermediate transfer belt (ITB) on page 92.
●
Upper-left cover. See
Upper-left cover on page 96.
●
Power-supply cover. See
Power-supply cover on page 98.
●
Left cover. See
Left cover on page 99.
●
Front-top cover. See
Front-top cover on page 100.
●
Rear-top cover. See
Rear-top cover on page 102.
●
Rear cover. See
Rear cover on page 112.
●
Interconnect board (ICB). See
Interconnect board (ICB) on page 153.
●
Low-voltage power supply. See
Low-voltage power supply (LVPS) on page 157.
●
DC controller PCA. See
DC controller PCA and tray on page 161.
●
High-voltage power supply lower. See
High-voltage power supply lower (HVPS-D) on page 163.
●
Exhaust fan and fan duct. See
Exhaust fan and fan duct on page 169.
●
High-voltage power supply upper. See
High-voltage power supply upper (HVPS-T) on page 196.
●
Yellow, magenta, cyan, and black drum motors. See
Remove the yellow, magenta, cyan, and black
drum motors on page 199.
ENWW Internal assemblies 203