HP Pro 4300 C9H70UT C9H70UT#ABA manual Main drive assembly 1

Main drive assembly

1.Remove the following assemblies:

●Top and right-side covers. See “Top cover” on page 146 and “Right-side cover” on page 149.

●Right-side fan (HP LaserJet 4300 series only) and fan duct. See “Cooling fan (right side; HP LaserJet 4300 series printer only)” on page 170.

●Print-cartridge motor (HP LaserJet 4300 series only). See “Print-cartridge motor (HP LaserJet 4300 series printer only)” on page 175.

●DC controller PCA. See “DC controller PCA” on page 181.

2.Use needle-nose pliers to release the lifting assembly spring (callout 1). Lift up the power switch arm (callout 2) and rotate it away from the chassis.

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Figure 137. Main drive assembly (1 of 2)

186 Removing and replacing parts Q2431-90912