HP OfficeJet Pro L7680

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Open the HP Print and Scan Troubleshooter

Make sure the printer is on and connected to your laptop. Select HP Print and Scan Doctor on the HP Customer Support page to download the troubleshooter. Click HPPSdr.exe to open the software`s window. Click Start and select the printer that doesn`t scan.

Comm. error (Communication error): Check for poor line conditions and resend when conditions improve. If available, try sending the fax through another wall jack and make sure you are using the phone cord that shipped with the fax machine.
A missing or outdated scanner driver can cause your HP scanner not to work, so you should update your scanner driver up to date. There are two ways to update your scanner driver: manually and automatically.
If a Firewall on your computer is active, it may be rejecting the necessary network connection needed for the network scanning software to operate properly. Disable the Firewall on your computer and try the network scanning again. Temporarily change your firewall/security settings to allow network connection.
Check your USB cable and printer

Check your USB cable from the printer to the Windows device and be sure it is plugged in. Check if your printer is running in normal parameters and all the lights are on. Check and see if you can print a document so that we resume ourselves only to the scanning feature of the printer.

The error displays for scanner hardware or power issues, such as a scanner bar jam or calibration issue, low scanner bulb temperature, or an internal or external electrical problem.
When the Windows Fax and Scan doesn`t work normally, you can try to disable the Windows Fax and Scan via Windows Features, restart your computer and then re-enable it again. Sometimes such a simple operation can enable it back to work properly.
Check the fax connection

Check for phone line connection issues that might cause fax receiving to fail. Confirm the fax cords are in the correct ports: The phone line should be connected to the 1-LINE port and the answering machine, if used, should be connected to the 2-EXT port on the back of the printer.

Install or add a network, wireless, or Bluetooth scanner

Here`s a way to do it manually. Select Start > Settings > Devices > Printers & scanners or use the following button. Select Add a printer or scanner. Wait for it to find nearby scanners, then choose the one you want to use, and select Add device.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP OfficeJet Pro L7680

my fax-2840, give me a error that says print unable EC.
ANSWER : Exhaust fan error. If you put your hand over it and don’t feel air coming out, it’s usually dirt or something keeping it from spinning. It almost never goes bad needing replacement. Try blowing it out first. Read this post

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HP OfficeJet Pro L7680

HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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HP OfficeJet Pro L7680

HP Laserjet 4200 50.2 Fuser error
ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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HP OfficeJet Pro L7680

HP 9040 MFP Error code
ANSWER : bonsoir

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HP OfficeJet Pro L7680

Error Code 51.1 says Printer Error No Kidding.lol
ANSWER : Sometimes turning off and on will allow you to print a few pages. The error is a beam detect error. The only real fix is to replace the laser scanner unit. Could be a loose connector on the scanner or DC controller from the scanner. That’s unlikely. You could try the only other free fix which is to open the scanner assy. and clean all the mirrors inside. The dust could obstruct the laser beam enough to cause the detect error.

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HP OfficeJet Pro L7680

Scanner error keeps coming up
ANSWER : I am having the same problem with my Epson Workforce 645

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HP OfficeJet Pro L7680

HP 4050 Error 13.1 & 13.20
ANSWER : I tried the fix you recommended but it still would not fix.

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HP OfficeJet Pro L7680