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HP LaserJet Enterprise MFP M725 - Removal and replacement: Control panel assembly

This document provides the procedures to remove and replace the control-panel assembly.

Mean time to repair: 10 minutes

Service level: Basic

Before performing service

Turn the printer power off.

  • Disconnect the power cable.

    Warning:

    To avoid damage to the printer, turn the printer off, wait 30 seconds, and then remove the power cable before attempting to service the printer.

Use the table below to identify the correct part number for your printer. To order the part, go to www.hp.com/buy/parts.

Part number

Control-panel assembly

CD644-67916

Kit, control panel

Required tools

  • #2 Phillips screwdriver with a magnetic tip.

After performing service

Turn the printer power on

  • Connect the power cable.

  • Use the power switch to turn the power on.

Post service test

Make sure that the printer initializes to a Ready state.

Print a configuration page to make sure that the printer is functioning correctly.

Remove the control panel assembly

Follow these steps to remove the control panel assembly.

  1. On the front side of the product, tilt the control panel up away from the product, remove two thumb-screws (callout 1), and then slide the control panel away from the product.

    Remove the control panel (1 of 2)

    Remove the control panel (1 of 2)
  2. On the underside of the control panel, disconnect two connectors (callout 1) to remove the control panel from the product.

    Remove the control panel (2 of 2)

    Remove the control panel (2 of 2)

Unpack the replacement assembly

Follow these steps to unpack the replacement assembly.

  1. Dispose of the defective part.

    Note:

    HP recommends responsible disposal of the defective part.

    http://www8.hp.com/us/en/hp-information/environment/product-recycling.html

  2. Unpack the replacement part from the packaging.

    CAUTION:

    Some parts are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation or mat. If an ESD workstation or mat is not available, touch the sheet-metal chassis to provide a static ground before touching an ESD-sensitive assembly. Protect the ESD-sensitive assemblies by placing them in ESD pouches when they are out of the printer.

    Important:

    Make sure that all of the shipping materials (for example shipping tape) are removed from the replacement part prior to installation.

    Note:

    If the replacement part is a roller or pad, avoid touching the spongy part of it. Skin oils on the roller or pad can cause paper pickup and/or print-quality problems. HP recommends using disposable gloves when handling rollers or pads or washing your hands before touching rollers or pads.

  3. To install an assembly, reverse the removal steps.

    Note:

    When applicable, special installation instructions are provided for an assembly at the end of the removal procedure. Always completely read the removal instructions and follow all special installation instructions.

Replace the control panel assembly

Follow these steps to replace the control panel assembly.

  1. On the underside of the control panel, connect two connectors (callout 1).

    Replace the control panel (1 of 2)

    Replace the control panel (1 of 2)
  2. On the front side of the product, slide the control panel toward the product, and then install two thumb-screws (callout 1).

    Replace the control panel (2 of 2)

    Replace the control panel (2 of 2)

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