HP Printer Error Code 41.3 — What It Means & How to Fix It

What Does This Error Mean?

Error 41.3 means the paper loaded in the tray does not match the paper size your print job expects. For example, your document is set to print on Letter size paper but the tray has A4 loaded. Load the correct paper size or update your print settings to match the paper in the tray.

Affected Models

HP LaserJet Pro M400 Series
HP LaserJet Pro M200 Series
HP LaserJet 4250
HP LaserJet 4350
HP Color LaserJet CP3525

Common Causes

The document is configured for one paper size but a different size is loaded in the tray
The paper tray guides were not adjusted after loading a different paper size
The printer's tray settings in the control panel do not match the paper currently loaded
The print driver on your computer has an incorrect or mismatched paper size selected
Multiple trays are installed and the printer selected the wrong tray for the job

How to Fix It

Check what paper size is loaded in the tray. Then check the paper size selected in your print job on the computer.

The paper in the tray and the size in your print settings must match exactly.
If the paper sizes do not match, either load the correct paper or change the paper size in your print driver before reprinting.

In most applications, go to File > Print > Printer Properties to find the paper size setting.
Adjust the paper guides in the tray to sit snugly against the edges of the paper you have loaded.

The printer uses the guide positions to detect paper size. Guides that are too loose make the printer read the wrong size.
On the printer control panel, go to Paper Settings or Tray Settings and confirm the correct paper size is set for each tray.

Some HP models require you to manually confirm the paper size in the control panel after loading new paper.
Press OK or Continue on the printer panel to override the mismatch and print anyway if the size difference is minor.

This is useful if you are printing Letter on A4 or vice versa and the content fits within the margins.

When to Call a Professional

Error 41.3 is a settings mismatch — not a hardware failure. No technician is needed. Adjust the paper size settings in the printer or your print driver. If the error persists after correcting all settings, the tray size sensor may be misreading the guides. Contact HP Support at 1-800-474-6836 if you need help adjusting tray configurations.

Frequently Asked Questions

What is the difference between Letter and A4 paper?

Letter is the standard US paper size — 8.5 x 11 inches. A4 is the standard European paper size — 8.27 x 11.69 inches. They look nearly identical but are slightly different. Your printer detects the difference and shows error 41.3.

Can I press Continue to bypass error 41.3?

Yes. On most HP LaserJets, pressing Continue or OK tells the printer to use the loaded paper anyway. The document may print with slightly different margins than intended. This is fine for most everyday documents.

Why does error 41.3 appear every time I print, even with the right paper?

The tray size guides may be set incorrectly and not registering the right paper size. Remove all paper, reset the guides fully, then reload the paper and adjust the guides snugly. Also check the paper size setting in the printer's control panel menu.