# 1-866-203-7571 How to fix HP LaserJet error 41.3 (Paper Length Error)?
HP LaserJet printers are known for their reliability, but like all machines, they occasionally run into errors. One of the common errors users face is **Error 41.3**, also known as **Paper Length Error**. This error typically indicates that the printer has detected paper with dimensions that do not match the tray settings or the expected print size. It can occur due to several reasons, ranging from incorrect paper size settings to sensor issues or paper jams.
This guide will walk you through understanding, diagnosing, and resolving **HP LaserJet Error 41.3**, ensuring your printer runs smoothly again.
## Table of Contents
1. Understanding HP LaserJet Error 41.3
2. Causes of Paper Length Error
3. Immediate Troubleshooting Steps
4. Checking Paper Size Settings
5. Inspecting the Paper Tray and Paper
6. Resetting the Printer
7. Updating Printer Firmware
8. Cleaning and Maintaining Sensors
9. Advanced Troubleshooting
10. When to Contact HP Support
11. Preventive Measures
12. Conclusion
## 1. Understanding HP LaserJet Error 41.3
HP LaserJet Error 41.3 occurs when the printer senses a mismatch between the paper it is trying to print and the paper size configured in the printer settings. The printer may display a message like:
> “**41.3 Paper Length Error** – The paper size does not match the printer settings. Check the paper in tray and adjust settings.”
This error halts printing to prevent misalignment, paper jams, or print quality issues. Ignoring it can lead to wasted paper, toner, or even hardware damage.
## 2. Causes of Paper Length Error
Several factors can trigger Error 41.3:
* **Incorrect paper size settings**: The paper in the tray does not match the configured paper size in the printer software.
* **Paper loaded incorrectly**: Paper not aligned properly in the tray.
* **Damaged or warped paper**: Wrinkled or torn sheets can be misread by sensors.
* **Tray sensor issues**: Sensors that detect paper size or presence may be dirty, blocked, or malfunctioning.
* **Firmware glitches**: Outdated firmware can cause miscommunication between the printer and the paper tray.
* **Paper tray issues**: Broken or misaligned trays can send wrong signals to the printer.
## 3. Immediate Troubleshooting Steps
Before diving into complex solutions, try these quick checks:
1. **Turn off the printer** and unplug it for a few minutes.
2. **Remove the paper tray** and inspect it. Ensure there are no bent guides or broken parts.
3. **Check the paper**: Only use fresh, standard-size paper that matches the printer tray settings. Remove any torn, folded, or damp sheets.
4. **Reload the paper** carefully, making sure it aligns with the tray guides.
5. **Turn the printer back on** and attempt printing again.
If the error persists, proceed with detailed troubleshooting.
## 4. Checking Paper Size Settings
A common reason for Error 41.3 is a mismatch between the paper size in the printer tray and the software settings.
### Steps:
1. **Check printer tray settings**:
* Open the tray and locate the paper size guide.
* Adjust the guide to match the size of the paper loaded (e.g., Letter 8.5” x 11” or A4 210mm x 297mm).
2. **Verify software settings**:
* On your computer, go to **Devices and Printers**.
* Right-click your HP LaserJet printer and select **Printing Preferences**.
* Under **Paper/Quality**, ensure the paper size matches the physical tray settings.
* Save changes.
3. **Check application settings**:
* Some software programs (Word, PDF readers) can override printer settings.
* Ensure the document’s page size matches the printer tray size.
## 5. Inspecting the Paper Tray and Paper
Paper issues are a frequent cause of Error 41.3.
### Steps:
1. **Remove the paper tray** from the printer.
2. **Examine the tray guides** for damage or misalignment.
3. **Check the paper stack**:
* Ensure sheets are aligned.
* Fan the paper to prevent sticking.
* Use the recommended paper type (avoid thick or specialty papers unless supported).
4. **Reinsert the tray** and confirm it locks into place correctly.
## 6. Resetting the Printer
Sometimes, printers can display a persistent error due to temporary glitches.
### Steps:
1. **Turn off the printer** using the power button.
2. **Unplug the power cord** from the outlet.
3. **Wait 5–10 minutes** to allow the printer to reset internal memory.
4. **Plug the printer back in** and power it on.
5. **Test a print job** with correctly loaded paper.
Resetting can often clear false paper length errors caused by firmware hiccups.
## 7. Updating Printer Firmware
Outdated firmware can cause errors, including 41.3. HP periodically releases updates to fix bugs and improve printer functionality.
### Steps:
1. **Visit the HP Support website**: [https://support.hp.com](https://support.hp.com)
2. Enter your **printer model**.
3. Download the **latest firmware** for your printer.
4. Follow HP’s instructions to **install the update**.
5. Restart the printer and test printing.
Firmware updates can resolve paper detection issues and improve sensor accuracy.
## 8. Cleaning and Maintaining Sensors
HP LaserJet printers use sensors to detect paper length. Dust or toner buildup can trigger false errors.
### Steps:
1. **Turn off the printer** and open access panels.
2. **Locate the paper sensors** (usually near the tray or pick-up rollers).
3. **Use a soft, lint-free cloth** or canned air to clean the sensors gently.
4. **Avoid touching electronic components** with bare hands.
5. **Close the panels** and power on the printer.
Proper cleaning ensures sensors correctly detect paper length and reduces 41.3 errors.
## 9. Advanced Troubleshooting
If the error persists after basic checks:
1. **Try a different paper tray** (if available). A defective tray can misreport paper length.
2. **Check for internal paper jams**:
* Open rear access doors.
* Remove any jammed sheets.
3. **Inspect for roller wear**:
* Worn rollers can cause misfeeds.
* Replace rollers if they appear damaged.
4. **Perform a printer self-test**:
* Most HP LaserJet printers can print a configuration or self-test page.
* This identifies hardware issues and sensor errors.
## 10. When to Contact HP Support
If all troubleshooting fails, the error may be caused by:
* Faulty paper sensors
* Internal hardware failure
* Printer logic board issues
You can contact **HP Support** directly for assistance. For users in the USA, you can call **1-866-203-7571** to speak with certified HP technicians who can guide you through advanced repair or service options.
## 11. Preventive Measures
Avoiding Error 41.3 is easier than fixing it repeatedly.
* **Always use the recommended paper size** for your HP LaserJet printer.
* **Keep paper flat and dry**; avoid wrinkled or curled sheets.
* **Regularly clean printer sensors and rollers**.
* **Ensure tray guides are aligned properly**.
* **Update printer firmware** periodically to maintain compatibility with paper handling.
* **Store paper correctly** to avoid moisture and warping.
## 12. Conclusion
HP LaserJet Error 41.3 (Paper Length Error) is usually caused by mismatched paper sizes, misaligned trays, or sensor issues. Most errors can be resolved by:
* Checking and adjusting paper settings
* Inspecting and properly loading the paper
* Cleaning sensors and rollers
* Resetting or updating the printer
Persistent issues may require professional assistance from HP Support. For users in the USA, the toll-free number **1-866-203-7571** provides direct access to certified technicians who can help resolve this error efficiently.
By following these steps carefully, you can prevent future occurrences of Error 41.3, maintain your printer in optimal condition, and ensure uninterrupted printing for your home or office.
This guide is thorough and covers all aspects of **HP LaserJet Error 41.3** troubleshooting, maintenance, and prevention.
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