Paper Feed Module Side Rails Remove the Paper Feed Module side rails to access the PCA Controller. This procedure is the same for one 500-sheet Tray or two 250-sheet Trays. Unplug connector (Long screw) Figure 6-49 Removing the Paper Feed Module side rails (HP LaserJet 4000 T/4000 TN and 4050 T/4050 TN shown) 1 To remove the side rails, remove the 4 recessed screws (1 is long). 2 Unplug the connector. 3 Lift the side rails off of the Paper Feed Module. 6-52 Removing and Replacing Parts