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HP OfficeJet Pro X451 Removing and Replacing HP Duplex Module

Originally written for: HP OfficeJet Pro X451dn
Also applies to: HP OfficeJet Pro X451dw, X551dw
  • Date:

    Oct 23, 2018

On the HP OfficeJet Pro X451, after installing the duplex module, a reset will be required of the counter. Please follow the instructions to properly install and reset the duplex module counter.

To order your replacement Duplex Module for this printer, use the following part: G3289 (HP CN598-67004)

Contents
  1. Introduction
  2. Instructions
Introduction

For the duplex module and other consumable parts, HP uses a counter system to notify when the expected useful life is over.  This helps prevent duplex printing issues like jamming or skewing.

Once you have installed the duplex module, a reset will be required of the counter. Please follow the instructions below in order to properly install the printer duplex module and reset the counter.

 
Instructions

Power off your HP OfficeJet Pro X451/551.

Press the power button on the front of the printer to power off your machine.
 

Disconnect the OfficeJet Pro power cord.

Disconnect the power cord from the rear of the printer.
 

Open the left door of your HP OfficeJet X451dn/dw / X551dw.

Open the door located on the left side of your HP machine.
 

Remove the HP X551dw duplex module.

Remove the duplex module and place it to the side on a sheet of paper.
 

Unpack the replacement HP OfficeJet duplex module.

Unpack the replacement duplex module from the original packaging.
 

Install the new duplex module into your HP OfficeJet printer.

Install the duplex module by gently sliding the module into your HP machine. You should feel the module lock/click into place.
 

Close the HP OfficeJet X451dw printer’s left door.

Close the left door.
 

Reconnect the power cord to your HP OfficeJet printer.

Reconnect the power cord.
 

Power on your HP OfficeJet Pro x451dw.

Press the power button to power on your machine.
 

Press the back button four times on the HP OfficeJet Pro x451dn display to start opening Service Mode.

With your new duplex module installed and your printer powered up, press the back button four times on your HP control panel display. This button is located at the bottom left of your HP control panel display.
 

Press the X button below the back button.

Press the X button below the back button one time.
 

Press the back button two more times on your HP OfficeJet Pro x451dn control panel.

Press the back button two more times. This should bring up the Support Menu for this model of machine.
 

Press the OK arrow on your HP OfficeJet Pro x551dw to access the support menu screen.

Press the OK button in order to access the Support Menu.
 

Press the down arrow on your HP OfficeJet x451dn until System Configuration Menu appears.  Then press OK.

Press the down arrow (located on bottom right of control panel display) until System Configuration Menu appears. Then press OK.
 

Press the down arrow button on your HP OfficeJet control panel until the Service Ink Container or Duplex Module appears on the screen. Then press the OK button.

Press the down arrow button until Service ink container or Duplex Module appears on the screen. Then press the OK button.
 

Press the down arrow button on your HP OfficeJet Pro x451 control panel until Replace duplex module appears, then press the OK button.

Press the down arrow button until Replace duplex module appears, then press the OK button.
 

Press OK again on your HP OfficeJet Pro x451dw control panel to confirm replacement and reset the duplex module counter.

Press OK again to confirm replacement/installation of the new Duplex Module.
 

Press OK again and your HP OfficeJet x451dn duplex life counter has been reset.

Press OK when the Successfully reset counter message appears.
 

Press the X button repeatedly on your HP OfficeJet x451dw until the home screen appears on the display.

Press the X button repeatedly until the home screen appears on the display. Your control panel should look like the control panel pictured in the image below.
 
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