drum-error Troubleshooting

Drum error / replace drum on the HP 903

Source: HP Support — printer error codes Confidence: 85% Verified Aug 9, 2026

The printer reports a drum error or prompts to replace the drum unit, often because the drum has reached its rated page count.

How to fix Drum error / replace drum

Reset the drum counter

Open the front cover, press the clear/reset button on the drum unit, and close the cover to reset the drum counter.

Source: HP Support — printer error codes Confidence: 85% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Replace the drum unit

If the drum is worn, replace it with a genuine drum unit.

Source: HP Support — printer error codes Confidence: 85% Verified Aug 9, 2026
Difficulty: ★★ Est. 10 min

Parts needed: HP 903 Drum Unit

Replacement parts for the HP 903

HP OfficeJet Pro 9015 Maintenance Kit HP DeskJet 2755e Maintenance Kit HP LaserJet Pro M404 Maintenance Kit HP 953 Maintenance Kit HP Smart Tank 5105 3-in-1 Multifunktionsdrucker Maintenance Kit HP 963 Maintenance Kit HP 305XL Maintenance Kit HP 304 Schwarz Maintenance Kit HP 62 Maintenance Kit HP 301 Schwarz Maintenance Kit HP 302 Original Druckerpatronen 2er-Pack Maintenance Kit HP 302 Maintenance Kit HP 305 Maintenance Kit HP 903 Toner Cartridge HP 903 Drum Unit HP 903 Ink Cartridge HP 903 Fuser Assembly HP 903 Paper Tray HP 903 Maintenance Kit HP 301 Maintenance Kit HP 142A Maintenance Kit HP 912 Maintenance Kit HP 304 Maintenance Kit HP 304 Farbe Maintenance Kit HP LaserJet M110w Laserdrucker Maintenance Kit HP 953XL Maintenance Kit HP OfficeJet Pro 8122e Multifunktionsdrucker Maintenance Kit HP 303 Maintenance Kit HP 305 Original Negro 1 pieza Maintenance Kit HP 903XL Maintenance Kit

← All HP 903 error codes

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