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Kamis, 27 Februari 2014

Removal and replacement High voltage power supply hp laserjet p 4010 and 4015 series

 High voltage power supply

CAUTION:The product contains components that are sensitive to electrostatic discharge (ESD).
Always perform service work at an ESD-protected workstation. If an ESD-protected workstation is not
available, discharge body static by grasping the product chassis before touching an ESD-sensitive
component. Ground the product chassis before servicing the product.

1. Remove the following components:
• Top accessory cover.
• Duplex accessory or cover.
• Tray 2 extension door.
• Rear output bin.
• Formatter cover and cage.
• Top cover.
• Right-side cover.
• Left-side cover.


2. Remove two screws (callout 1), release one tab (callout 2) and slide the power-supply PCA guide
towards the rear of the product to remove it.

Figure Remove the high-voltage power-supply assembly


3. Remove four screws (callout 3) and one grounding screw (callout 4).

A WARNING! When reinstalling the power supply, you must use a grounding screw to secure the
AC outlet to the product chassis.

Figure  Remove the high-voltage power-supply assembly


4. Unhook the power-switch arm (callout 5) from the chassis (the switch arm will still be attached to the power supply).

Figure  Remove the high-voltage power-supply assembly


5. Disconnect five wire-harness connectors (callout 6; J82, J84, J85, J95, and J96).

Figure  Remove the high-voltage power-supply assembly


6. Remove two screws (callout 7) and then remove the fan-cover plate (callout 8).

Figure  Remove the high-voltage power-supply assembly



7. Disconnect three wire-harness connectors (callout 9) and then remove four screws (callout 10).

Figure  Remove the high-voltage power-supply assembly


8. Feed the cables that were disconnected earlier through the hole in the right side of the chassis under the power-supply assembly. Pull down on the power-switch connector bar (callout 11) to slide it out of its mounting bracket, and remove it.

A CAUTION: Make sure that the four rubber belts and plastic rollers on the feed-guide assembly (mounted to the top of the power supply) remain in place. These belts and rollers can easily become dislodged and you might lose them.

Figure  Remove the high-voltage power-supply assembly


9. Grasp the power-supply assembly and lift it up slightly. Pull it straight out of the chassis.

$ Reinstallation tip When you reinstall the power supply, thread the heavy-gauge wire-harness through the hole in the chassis first, and then thread the two ribbon cables through the hole. This prevents the harness and cables from crossing over each other when they are placed in the wire guide. Make sure that you install the power-switch connector bar when you install the power supply.

Figure  Remove the high-voltage power-supply assembly

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