solution Contentsolution Content

HP LaserJet Pro M402, M403, MFP M426, MFP M427 - Removal and replacement: Paper pickup roller assembly (Tray 3)

Introduction

This document provides the procedures to remove and replace the paper pickup roller assembly (Tray 3).

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.
Paper pickup roller assembly (Tray 3) part number
RM2-5741-000N
Paper pickup roller assembly (Tray 3)

Required tools

  • No special tools are required to remove this part.

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 from the accessory to make sure that the printer is functioning correctly.

Step 1: Remove optional Tray 3

  1. Pull the tray straight out of the printer until it stops.
    Figure : Pull the tray out of the printer
  2. Slightly lift up on the front of the tray to release it, and then continue to pull the tray out of the accessory to remove it.
    Figure : Release and remove the tray

Step 2: Remove the paper pickup roller assembly (optional Tray 3)

  caution:
When handling the roller holder, do not touch the gray spongy portion of the rollers. Skin oils on the rollers can cause paper handling problems.
  1. Carefully turn the accessory over to expose the roller assembly.
    Figure : Turn the accessory over
  2. Slide the roller holder to the right to compress the spring-loaded shaft and release the assembly.
    Figure : Release the assembly
  3. Rotate the end of the assembly up and away from the accessory.
    Figure : Rotate the assembly up
  4. Remove the roller assembly.
    Figure : Remove the assembly

Step 3: Unpack the replacement assembly

Unpack the replacement part from the packaging.
  caution:
When handling the roller holder, do not touch the gray spongy portion of the rollers. Skin oils on the rollers can cause paper handling problems.
note:
HP recommends responsible disposal of the defective part.
Recycle and unpack
Figure : Recycle and unpack

Step 4: Install the paper pickup roller assembly (optional Tray 3)

  caution:
When handling the roller holder, do not touch the gray spongy portion of the rollers. Skin oils on the rollers can cause paper handling problems.
  1. Install the right end of the assembly on the spring-loaded shaft (callout 1), and then slide it to the right to compress the shaft (callout 2).
    note:
    Make sure that the pin on the back of the holder (callout 3) is inserted in the slot (callout 4) in the lever arm. If the pin is not correctly installed, the accessory will not pick paper.
    Figure : Install the roller assembly
  2. Rotate the left end of the assembly down and into place (callout 1), and then slide the assembly to the left (callout 2) to engage the drive end of the assembly with the drive shaft (callout 3).
    Figure : Release the assembly
  3. Push down and then release the tray-roller actuator (callout 1) and observe the roller assembly. It should move up and down (callout 2) in response to the actuator.
    note:
    If it does not, remove the roller assembly and reinstall it making sure that the pin on the back of the assembly is in the lever arm. See Install the roller assembly.
    Figure : Check the installation

Step 5: Install optional Tray 3

  1. With the tray at a slight angle, align the sides of the tray with the rails in the accessory, and then partially slide the tray into the accessory.
    Figure : Install the tray
  2. Push the tray straight into the accessory to close it.
    Figure : Close the tray