User Guide

Main drive assembly
1 Remove the following assemblies:
● Top and right-side covers. See
Top cover and Right-side cover.
● Right-side fan and fan duct (HP LaserJet 4250/4300/4350 Series printers only). See
Cooling
fan, right side (HP LaserJet 4250/4300/4350 Series printers only).
● Print-cartridge motor (HP LaserJet 4250/4300/4350 Series printers only). See steps 1
through 6 of
Print-cartridge motor (HP LaserJet 4250/4300/4350 series printer only).
● Main motor. See
Main motor
● Dc controller PCA. See
Dc controller PCA.
2 Release two tabs (callout 1) that secure the cable guide to the chassis and then lift the cable
guide off of the printer.
Figure 6-85 Main drive assembly (1 of 3)
Pickup and feed assemblies 263