solution Contentsolution Content

HP Color LaserJet Enterprise M751, M856, Managed E75245, E85055, MFP M776 - Removal and replacement: Secondary transfer roller (M751/E75245/M856/E85055/M776)

Learn how to remove and replace the secondary transfer roller.

Mean time to repair: 2 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

RM2-1399-010CN

Secondary transfer roller

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 secondary transfer roller

Follow these steps to remove the secondary transfer roller.

  1. Open the right door.

    Open the right door

    Open the right door
  2. Release the latch (callout 1), and then lift the left side of the roller.

    Release the transfer roller

    Release the transfer roller
  3. Slide the transfer roller to the left to remove it.

    CAUTION:

    Do not touch the surface of the secondary transfer roller.

    Remove the secondary transfer roller

    Remove the secondary transfer roller

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 secondary transfer roller

Follow these steps to install the secondary transfer roller.

  1. Position the shaft (callout 1) on the secondary transfer roller into the opening (callout 2) in the right door.

    Position the secondary transfer roller

    Position the secondary transfer roller
  2. Press the left edge of the secondary transfer roller down until it snaps into place.

    Install the secondary transfer roller

    Install the secondary transfer roller
  3. Close the right door.

    Close the right door

    Close the right door