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HP LaserJet Enterprise 500 Color MFP M575/Flow MFP 575 - Removal and replacement: Control-panel assembly

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

Important:

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.

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 cord 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 information

Control panel kit part number

CD644-67916

Control panel assembly kit, 575dn and 575f

CD644-67920

Control panel assembly kit, 575c

Required tools

  • No special tools are required to install this kit.

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 (M575dn, M575f)

Follow these steps to remove the control-panel assembly (M575dn, M575f).

Note:

These steps apply only to the M575dn and M575f models. For the M575c models, skip to the next step.

CAUTION:

ESD sensitive component.

  1. Lift the control panel to an upright position.

    Remove the control panel (1 of 5)

    open the cartridge door
  2. Lift the antistatic covers to reveal the thumbscrews.

    Remove the control panel (2 of 5)

  3. Remove two thumbscrews.

    Remove the control panel (3 of 5)

    disconnect one connector and remove one screw
  4. Slowly slide the control panel away from the product to release it. Lift the control panel to reveal the connectors.

    Remove the control panel (4 of 5)

    slide the control panel toward the front of the product to release it
  5. Disconnect two connectors and then remove the control panel.

    Remove the control panel (5 of 5)

    lift up and remove the control panel
  6. Reverse the removal steps to install the assembly. Also use the following special installation instructions.

    1. Place the control-panel on the product and reconnect the two connectors before attempting to reinstall the control panel.

      Note:

      Continue to reverse the removal steps to finish installing the assembly.

Remove the control-panel assembly (M575c)

Follow these steps to remove the control-panel assembly (M575c).

Note:

These steps apply only to the M575c models. For the M575dn and M575f models, skip to the next step.

CAUTION:

ESD sensitive component.

  1. Review the following important considerations before removing the control panel on the M575c product.

    • When removing the control panel, only raise it about half way open to access the FFC connector. Doing so prevents straining the control-panel FFC (callout 1).

      Raise the control panel to access the FFC connector (1 of 2)

      Raise the control panel to access the FFC connector (1 of 2)
    • When removing the control panel, do not fully raise the control panel to access the FFC connector. Doing so causes strain damage to the FFC (callout 1).

      Raise the control panel to access the FFC connector (2 of 2)

      Raise the control panel to access the FFC connector (2 of 2)
    • The FFC has two pre-folds about 2.54 cm 1.0 in from either end (callout 1). If the FFC has been strained (for example stretched too tight when the control panel is removed), it might contain additional folds or creases (callout 2). Additional folds or creases can cause internal damage to the FFC when the keyboard is pulled in and out of the product.

      Check the control panel FFC for damage (1 of 2)

      Raise the control panel to access the FFC connector (1 of 2)
    • Do not bend or fold the flat flexible cable (FFC) during removal or installation. Also, do not straighten pre-folds in the FFCs.

      Check the control panel FFC for damage (2 of 2)

      Check the control panel FFC for damage (2 of 2)
  2. Pull the keyboard about half way out of the product.

    Remove the control-panel assembly (1 of 13)

    Remove the control-panel assembly
  3. Align the caps lock key and enter key with the edge of the control panel.

    Remove the control-panel assembly (2 of 13)

    Remove the control-panel assembly
  4. Lift the control-panel assembly to an upright position.

    Remove the control-panel assembly (3 of 13)

    Remove the control-panel assembly
  5. Remove the antistatic covers to reveal the thumbscrews.

    Remove the control-panel assembly (4 of 13)

    Remove the control-panel assembly
  6. Remove two thumbscrews.

    Remove the control-panel assembly (5 of 13)

    Remove the control-panel assembly
  7. Carefully return the control-panel assembly to the down position.

    Remove the control-panel assembly (6 of 13)

    Remove the control-panel assembly
  8. Pull down on the control-panel assembly until it stops.

    Remove the control-panel assembly (7 of 13)

    Remove the control-panel assembly
  9. Slightly lift up the control-panel assembly to access the FFC-keyboard connector.

    CAUTION:

    To avoid damage to the FFC, do not fully raise the control panel assembly.

    Remove the control-panel assembly (8 of 13)

    Remove the control-panel assembly
  10. Locate the FFC connector on the keyboard.

    Remove the control-panel assembly (9 of 13)

    Remove the control-panel assembly
  11. Carefully lift up on the connector retainer to release the FFC.

    Remove the control-panel assembly (10 of 13)

    Remove the control-panel assembly
  12. Remove the FFC from the connector on the keyboard.

    Remove the control-panel assembly (11 of 13)

    Remove the control-panel assembly
  13. With the FFC disconnected from the keyboard, lift up on the control panel to access the remaining connectors. Disconnect the USB and wire harness connectors (callout 1).

    Remove the control-panel assembly (12 of 13)

    Remove the control-panel assembly
  14. Remove the control-panel assembly.

    Remove the control-panel assembly (13 of 13)

    Remove the control-panel assembly
  15. Reverse the removal steps to install the assembly. Also use the following special installation instructions.

    1. When the control-panel assembly is reinstalled on the product, make sure that the mounting hooks on the right side of the assembly engage with the slot and tab on the chassis.

      Reinstall the control-panel assembly (1 of 2)

      Reinstall the control-panel assembly
    2. When the control-panel assembly is reinstalled on the product, make sure that the mounting slots on the left side of the assembly engage with the hooks on the chassis.

      Note:

      Continue to reverse the removal steps to finish installing the assembly.

      Reinstall the control-panel assembly (2 of 2)

      Reinstall the control-panel assembly

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.


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