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HP Color LaserJet Enterprise M751, M856, Managed E75245, E85055, MFP M776 - Install accessory: Internal USB ports (M751/E75245/M856/E85055/M776)

Learn how to install the internal USB ports accessory.

Mean time to repair: 10 minutes

Service level: CSR A

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

Part number

Part description

B5L28-67902

Internal USB ports

Required tools

  • No special tools are required to remove or install this assembly.

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 page to make sure that the printer is functioning correctly.

Remove the formatter cover

Follow these steps to remove the formatter cover.

  1. Loosen one thumbscrew (callout 1), and then slide the formatter cover (callout 2) away from the printer to remove it.

    Remove the formatter cover

    Remove the formatter cover

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.

Install the internal USB ports accessory

Follow these steps to install the internal USB ports accessory.

  1. Position the notches on the internal USB ports PCA over the clips on the PCA holder, and then press down to attach the PCA to the holder. Make sure that the clips snap into place.

    Attach the PCA to the cradle

    Attach the PCA to the cradle
  2. Connect the cable to the connector (callout 1) on the small PCA.

    Note:

    The connector on the cable is keyed. Make sure it is correctly installed.

    Connect the cable to the PCA

    Connect the cable to the PCA
  3. Position the slot (callout 1) on the end of the PCA bracket over the metal tab (callout 2) on the formatter case.

    Position the slot over the tab

    Position the slot over the tab
  4. Position the upper tabs on the PCA bracket into the slots in the formatter case. Press until the tabs snap into place.

    Install the upper tabs

    Install the upper tabs
  5. Connect the cable to the connector (callout 1) on the formatter board.

    Connect the cable to the formatter

    Connect the cable to the formatter

Install the formatter cover

Follow these steps to install the formatter cover.

  1. Position the formatter cover (callout 1) on the printer, slide it toward the printer to install it, and then tighten one thumbscrew (callout 2).

    Install the formatter cover

    Install the formatter cover

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