hp-support-head-portlet

Actions
Loading...
HP Customer Support - Knowledge Base

hp-contact-secondary-navigation-portlet

Actions
Loading...

hp-share-print-widget-portlet

Actions
Loading...
  • Information

    Audio or sound issues? Try our automated HP Audio check!

    Information

    Fix and resolve Windows 10 update issue on HP Computer or Printer. Click here

    Information
    Create an HP account today!

     Connect with HP support faster, manage all of your devices in one place, view warranty information and more. Learn more​

hp-concentra-wrapper-portlet

Actions
Loading...

HP Color LaserJet MFP M577, MFP M578, MFP E57540 - Removal and replacement: Control panel (MFP)

This document provides the procedures to remove and replace the control panel (MFP).

Mean time to repair: 5 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

Part number

Part description

B5L47-67018

Control panel and reversible screwdriver with instruction guide

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

The printer includes a diagnostic test mode for the control panel. For more information, see the control panel checks section of the printer troubleshooting manual.

Remove the control-panel cover (MFP)

Follow these steps to remove the control-panel cover (MFP).

  1. Open the document feeder (callout 1).

    Note:

    If the control panel is not fully tilted forward, tilt it forward now until it stops (callout 2).

    Open the document feeder

    Open the document feeder
  2. Beginning at the right side of the control-panel cover, carefully release five tabs along the top edge of the cover.

    Note:

    The thin, black plastic cover will separate from the white plastic control-panel base.

    Release five tabs

    Release five tabs
  3. Continue to lift the top edge of the cover away from the printer, and then remove the cover.

    Remove the cover

    Remove the cover

Remove the control panel (MFP)

Follow these steps to remove the control panel (MFP).

  1. Flow models: Open the latch (callout 1) to release the keyboard flat cable.

    CAUTION:

    The latch must be opened to release the cable.

    Disconnect the keyboard flat cable (flow models)

    Disconnect the keyboard flat cable (flow models)
  2. Disconnect one HDMI cable (callout 1) and one connector (callout 2).

    Disconnect connectors

    Disconnect connectors
  3. Remove the USB cable (callout 1) from the holder.

    Flow models: Release four tabs (callout 2), and then remove the near-field communication (NFC) printed circuit board.

    Disconnect connectors

    Disconnect connectors
  4. Remove three screws (callout 1).

    Tip:

    The screwdriver (supplied with the kit) has a reversible shaft. Simply pull the shaft out of the handle, and then reinstall it with the desired end facing out.

    Remove three screws

    Remove three screws
  5. Lift the front of the control panel off of the printer (callout 1), and then slide it towards the front of the printer (callout 2) to remove it.

    Remove the control panel

    Remove the control panel

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 control panel (MFP)

Follow these steps to install the control panel (MFP).

  1. Flow models: Open the latch (callout 1) to release the keyboard flat cable.

    CAUTION:

    The latch must be opened to release the cable.

    Disconnect the keyboard flat cable (flow models)

    Disconnect the keyboard flat cable (flow models)
  2. Flow models: Make sure to feed the keyboard flat cable (callout 1) through the opening (callout 2) in the control-panel base when installing the control panel.

    Feed the keyboard flat cable through opening

    Feed the keyboard flat cable through opening
  3. Locate the four hooks on the printer and matching slots in the control-panel base (callout 1). The hooks fit into the slots (callout 2) when the assembly is installed.

    Note:

    Make sure that the grounding clip (callout 3) is on top of the assembly base when it is installed.

    Locate hooks and grounding clip

    Locate hooks and grounding clip
  4. Position the rear edge of the control panel in the printer (callout 1), and then lower the front edge down (callout 2) to install it.

    Note:

    If the control panel is difficult to install, make sure that the hooks, slots, and grounding clip are correctly engaged. See the previous step.

    Install the control panel

    Install the control panel
  5. Install three screws (callout 1), making sure that the grounding clip is correctly installed (callout 2).

    Note:

    The screwdriver (supplied with the kit) has a reversible shaft. Simply pull the shaft out of the handle and then reinstall it with the desired end facing out.

    Install three screws

    Install three screws
  6. Connect one HDMI cable (callout 1), and one connector (callout 2).

    Connect connectors

    Connect connectors
  7. Install the USB cable (callout 1) in the holder.

    Note:

    NFC models only: Install the near-field communication (NFC) printed circuit board under the four tabs (callout 2).

    Install USB and NFC

    Install USB and NFC
  8. Flow models: Position the keyboard flat cable in the connector, and then close the latch (callout 1).

    Note:

    Slightly tug on the cable to make sure that it is fully captured in the connector.

    Connect the keyboard flat cable

    Connect the keyboard flat cable

Install the control-panel cover (MFP)

Follow these steps to install the control-panel cover (MFP).

  1. Position the control-panel cover on the printer.

    Install the cover

    Install the cover
  2. Beginning at the left side of the control-panel cover, carefully push down along the top edge of the cover to engage five tabs.

    Engage five tabs

    Engage five tabs
  3. Close the document feeder.

    Note:

    Adjust the control panel to the desired angle.

    Close the document feeder

    Close the document feeder

hp-feedback-input-portlet

Actions
Loading...

hp-feedback-banner-portlet

Actions
Loading...

hp-country-locator-portlet

Actions
Loading...
Country/Region: Flag Slovakia

hp-detect-load-my-device-portlet

Actions
Loading...