B5L24-67902 HP Color LaserJet M552 M553 MFP M577 Managed E55040 MFP E57540 Removal and Replacement: Secondary Transfer Roller
1:Open the right door.
2:Push in on the blue lever (callout 1) to release the secondary transfer roller assembly, and then lower the assembly (callout 2) to the service position.
3:Slightly lift the left end of the roller shaft (callout 1; near the gear) to release the transfer roller clip.
4:Slide the right end roller collar (callout 2) to the left to remove the transfer roller.
5:Unpack the replacement secondary transfer roller assembly
6:Install the secondary transfer roller