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Need Windows 11 help?
Check the information on compatibility, upgrade, and available fixes from HP and Microsoft. Windows 11 Support Center

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Replace the imaging drum on an HP LaserJet Ultra MFP M134, M230 printer

Replace the imaging drum when prompted by messages on the printer control panel or printer software, when it is damaged, or when print quality is unacceptable.

Replace the imaging drum when you see one or more of these indications.

The Attention light blinks, the Toner light is on, and Er and 09 alternate on the printer control panel.
An Imaging Drum Low or Imaging Drum Very Low message displays on the printer control panel.
Printouts have repeated defects at 26 mm (1 in) intervals, 94 mm (3.7 in) intervals, or both.

Replacement imaging drum part number: CF232A or CF234A

Purchase an imaging drum

Purchase an imaging drum from a local retailer or from the HP website.

Go to HP Store (in English).
Select your country/region.
Click Ink & toner at the top of the page.
Follow the instructions to order an imaging drum for your printer model.

Replace the imaging drum

Remove the toner cartridge and imaging drum, and then replace the drum.

Lift the scanner assembly, and then open the top cover to access the inside of the printer.
Rotate the toner cartridge to the unlock position.
Remove the toner cartridge. The new imaging drum comes with a low-yield toner cartridge. If your current cartridge still provides acceptable print quality, store it in a cool, dry place.
Remove the old imaging drum, and then recycle it.
Remove the new imaging drum and toner cartridge from the package.

CAUTION:
Do not touch the green roller on the imaging drum. Fingerprints on the roller can result in poor print quality.
Align the imaging drum and toner cartridge assembly with the tracks inside the printer, and then push until it snaps into place.
Close the top cover, and then lower the scanner assembly.