# 1-866-203-7571 How to fix HP printer error 79 (Firmware/Software Error)?
HP printers are widely used across homes and offices due to their reliability and performance. However, like any technology, they are not immune to errors. One of the most frustrating errors for HP printer users is **Error 79**, also called a **Firmware/Software Error**. This error typically interrupts printing jobs and can halt productivity, making it critical to understand its causes and solutions.
For U.S. users seeking expert assistance, you can contact HP support at **1-866-203-7571**.
## Table of Contents
1. Introduction to HP Printer Error 79
2. Common Causes of Error 79
3. Preliminary Steps Before Troubleshooting
4. Step-by-Step Methods to Fix Error 79
* Method 1: Restart the Printer
* Method 2: Clear Print Jobs and Reset Printer Queue
* Method 3: Update Printer Firmware
* Method 4: Check Printer Drivers and Software
* Method 5: Network-Related Fixes
* Method 6: Power Cycle Printer and Network
* Method 7: Advanced Solutions
5. Preventive Measures to Avoid Error 79
6. When to Contact HP Support
7. Conclusion
## 1. Introduction to HP Printer Error 79
**HP printer error 79** is a firmware or software-related issue that can occur on a variety of HP printers, including **HP LaserJet, HP OfficeJet, and HP Pro printers**.
This error is often accompanied by one of the following messages on the printer display:
* “**79 - Firmware Error**”
* “**79.XX.XX - Software Error**”
The error may appear during:
* Printing large documents
* Printing multiple jobs simultaneously
* After firmware updates
* While network printing
## 2. Common Causes of Error 79
Understanding the root causes can prevent repeated occurrences. Common triggers include:
1. **Firmware Bugs or Glitches**
Outdated or corrupted firmware can cause the printer to freeze and display error 79.
2. **Corrupted Print Jobs**
Large or corrupted documents sent to the printer can overload its memory, causing a firmware error.
3. **Network Printing Issues**
Network instability or conflicts can interrupt data transfer, triggering error 79 on network-connected printers.
4. **Printer Driver Conflicts**
Outdated or incompatible drivers on a PC can conflict with the printer software.
5. **Memory Overload**
HP LaserJet printers with low memory can display error 79 when processing complex jobs or multiple requests.
6. **Third-Party Software or Security Settings**
Certain firewall settings or print management software can interfere with printer communication.
## 3. Preliminary Steps Before Troubleshooting
Before performing advanced troubleshooting, try these simple steps:
* **Check the Printer Display:** Note the exact error code (79, 79.XX, etc.).
* **Power Cycle the Printer:** Turn off the printer, unplug it, wait 60 seconds, and plug it back in.
* **Clear Print Queue:** Remove all pending jobs from your computer’s print queue.
* **Check Cables:** Ensure USB, Ethernet, or network cables are securely connected.
* **Reboot Computer:** Restart the computer to remove temporary glitches.
## 4. Step-by-Step Methods to Fix Error 79
### **Method 1: Restart the Printer**
Restarting the printer is often the simplest solution:
1. Turn off the printer using the power button.
2. Unplug the printer from the power source.
3. Wait for 60-120 seconds.
4. Plug it back in and turn it on.
5. Attempt to print again.
This clears temporary memory issues and may resolve error 79.
### **Method 2: Clear Print Jobs and Reset Printer Queue**
Sometimes, a stuck print job triggers error 79. To clear the queue:
**On Windows:**
1. Press `Windows + R`, type `services.msc`, and press Enter.
2. Find **Print Spooler** service, right-click, and select **Stop**.
3. Navigate to `C:\Windows\System32\spool\PRINTERS` and delete all files in this folder.
4. Return to Services, right-click **Print Spooler**, and select **Start**.
**On Mac:**
1. Open **System Preferences → Printers & Scanners**.
2. Select your printer and click **Open Print Queue**.
3. Delete all pending print jobs.
Restart the printer and try printing again.
### **Method 3: Update Printer Firmware**
Firmware updates often resolve known bugs that cause error 79.
1. Visit the HP Support website: [HP Drivers & Software](https://support.hp.com).
2. Enter your printer model and operating system.
3. Download the latest **Firmware Update**.
4. Connect the printer via USB or network and run the firmware updater.
5. Follow on-screen instructions and restart the printer after completion.
**Note:** Avoid turning off the printer during the update, as this can cause permanent damage.
### **Method 4: Check Printer Drivers and Software**
Driver conflicts can also cause error 79:
* **Update Drivers:** Go to HP Support → Drivers section → Download latest drivers.
* **Reinstall Drivers:** Uninstall existing drivers, restart the computer, and reinstall the latest driver version.
* **Check Compatibility:** Ensure drivers match the operating system version.
### **Method 5: Network-Related Fixes**
For network printers, unstable connections can trigger error 79:
1. **Check Network Connection:** Ensure Wi-Fi/Ethernet is stable.
2. **Assign Static IP:** Go to printer network settings → Assign static IP.
3. **Disable IPv6:** On some networks, IPv6 can cause conflicts.
4. **Reconnect to Network:** Remove printer from the network, restart, and reconnect.
### **Method 6: Power Cycle Printer and Network**
Sometimes, the printer and network router need a full reset:
1. Turn off the printer and unplug from power.
2. Turn off the router and modem.
3. Wait 2-3 minutes and power on the router first.
4. Power on the printer after the network stabilizes.
5. Attempt to print again.
This ensures the printer and network communicate correctly.
### **Method 7: Advanced Solutions**
If the above methods fail, advanced troubleshooting may be necessary:
* **Reset Printer to Factory Defaults:**
Navigate to **Printer Menu → Settings → Restore Factory Defaults**. This clears corrupted configurations.
* **Check Printer Memory and DIMM Modules:**
For HP LaserJets, faulty memory modules can cause error 79. Remove and reseat DIMM modules if accessible.
* **Consult HP Support:**
Persistent errors may indicate hardware issues. Contact **HP U.S. Support at 1-866-203-7571** for certified assistance.
## 5. Preventive Measures to Avoid Error 79
1. **Keep Firmware Updated:** Regularly check for updates.
2. **Avoid Large or Corrupted Print Jobs:** Split large jobs into smaller batches.
3. **Stable Network Connection:** Ensure Wi-Fi or Ethernet is reliable.
4. **Regular Printer Maintenance:** Clean printer rollers, update drivers, and check cables.
5. **Use Compatible Software:** Avoid unsupported third-party management software.
## 6. When to Contact HP Support
Contact HP support if:
* Error 79 persists despite troubleshooting.
* You notice blinking lights or unusual printer noises.
* Firmware updates fail repeatedly.
* Hardware issues like memory faults or print engine errors appear.
**U.S. HP Support Number:** **1-866-203-7571**
Certified technicians can provide remote assistance, firmware fixes, and hardware replacement guidance.
## 7. Conclusion
HP Printer Error 79 is a common yet solvable issue. Most occurrences are due to firmware glitches, corrupted print jobs, or network issues. By following structured troubleshooting steps—restarting the printer, clearing the print queue, updating firmware and drivers, and checking network connections—you can often resolve the error without professional help.
Preventive measures like updating firmware regularly, maintaining network stability, and monitoring print jobs can minimize the risk of recurring error 79.
For persistent or complex cases, contacting **HP U.S. support at 1-866-203-7571** ensures professional assistance and reduces downtime, keeping your printing tasks smooth and error-free.
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