41.03.00HP LaserJet Pro M404dn

Fix Error 41.03.00 on HP LaserJet Pro M404dn

Error 41.03.00 on the HP LaserJet Pro M404dn is an 'unexpected paper size' alert. This occurs when the document size sent from your computer does not match the settings on the printer's tray or the physical media loaded. Follow these steps to align your tray and software settings to clear the error.

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Common causes

  • 1Mismatched paper settings in the print driver.
  • 2Loose tray guides failing to trigger size sensor.
  • 3Unsupported paper weights causing alignment issues.

Solutions

Adjust Paper Guides

  1. Pull the tray out entirely.
  2. Slide the width and length guides to fit your paper perfectly.
  3. Ensure paper is flat and not curled.

Sync Settings

  1. Go to the printer 'Configuration' menu.
  2. Navigate to 'Tray Settings'.
  3. Select the correct paper size to match the physical load.

Steps to follow

  1. 1

    Inspect Tray

    Ensure the paper guides are snug against the paper stack.

  2. 2

    Update Menu

    Set the correct paper size on the printer control panel under Tray Management.

  3. 3

    Driver Check

    Verify the paper size in your computer's print properties matches the printer configuration.

Frequently asked questions

Usually, the printer driver is set to A4 while the tray sensor detects Letter size.

Yes, lightweight paper can buckle or misalign, causing detection errors.

Rarely; most instances are resolved by simply aligning the tray guides and updating the menu settings.