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HP LaserJet MFP M433, M436, M437, M438, M439, MFP M440, M442, M443, HP LaserJet MFP M42523, M42525, and HP LaserJet MFP M42623, M42625 - Removal: Toner cartridge

Learn how to remove and replace the toner cartridges.

Introduction

Note:

Some figures might show a printer that looks different than the one being serviced. However, the procedures are correct for this printer (M433, M436, M437, M438, M439, M440, M442, M443, M42523, M42525,M42623, M42625). Always thoroughly read the instructions that accompany each figure.

A toner cartridge has almost reached its estimated cartridge life:

  • The status LED and the toner-related message on the display indicate when the toner cartridge should be replaced.

  • The computer Printing Status Program window appears on the computer screen indicating a toner empty condition.

CAUTION:

If toner gets on your clothing, wipe it off with a dry cloth and wash clothing in cold water. Hot water sets toner into fabric.

Note:

Shake the toner cartridge thoroughly, it will increase the initial print quality.

Illustrations in this procedure might differ from your machine depending on its options or models.

To order parts, go to www.hp.com/buy/parts.

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.

Required tools

  • Some assemblies might require using a Phillips and/or flat-blade screwdriver. Read through the removal instructions to determine if any tools are needed to remove the assembly.

After performing service

Turn the printer power off

  • Connect the power cable.

  • Use the power switch to turn the power on.

Post service test

After replacing major assemblies (for example, the document feeder) or internal parts (for example, the formatter board), perform the following post service tests.

  • When the power is turned on, listen for normal startup sounds.

  • Check the control-panel display for error messages.

  • Copy a page using the flat bed glass and/or the document feeder. Verify that the print quality meets customer expectations.

Remove the toner cartridge

Follow these steps to remove the toner cartridge.

  1. Open the front door. Push the two tabs on the toner cartridge inward and pull out to remove it.

    Remove the toner cartridge

    Remove the toner cartridge
  2. Remove the replacement toner cartridge from its packaging. Save all packaging for recycling the used toner cartridge.

    Note:

    Keep the orange plug in place. It is required for toner cartridge replacement.

    Unpack the replacement toner cartridge

    Unpack the replacement toner cartridge
  3. Hold the toner cartridge as shown and rotate the toner cartridge end to end to redistribute toner in the cartridge.

    Distribute toner

    Distribute toner
  4. Pull the red or orange pull tab and remove it completely.

    Remove the pull tab

    Remove the pull tab
  5. Align toner cartridge with the opening and push it in until toner cartridge locks into place. An audible click indicates the cartridge is locked into place. Close the front door.

    Install the toner cartridge

    Install the toner cartridge

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