- HP Laserjet Enterprise CP4020/CP4520 Manual

Registration density (RD) sensor assembly
Before proceeding, remove the following components:
●
Intermediate transfer belt (ITB). See
Intermediate transfer belt (ITB) on page 92.
●
Secondary transfer assembly. See
Secondary transfer assembly on page 119.
Remove the RD sensor assembly
1. Release one tab (callout 1), and then remove the cover (callout 2).
Figure 2-81 Remove the RD sensor assembly (1 of 7)
1
2
NOTE: When reinstalling the cover, make sure that the tabs are seated correctly.
Figure 2-82 Remove the RD sensor assembly (2 of 7)
124 Chapter 2 Removal and replacement ENWW