HP Laserjet Pro M521dn Troubleshooting

Why is HP Laserjet Pro m521dn Offline

Power cycle and verify whether the HP Laserjet Pro m521dn troubleshooting issue persists.

Choose Devices and Printers list from the control panel of your computer.

Right click on the printer which is in the list. Select the Default printer icon.

Click See What’s Printing and choose Printer. Make sure to choose the correct port.

You need to uncheck the Use Printer Offline option.

Try to link your printer and check if the issue has resolved.

If not, ensure that the router lights are blinking properly.

Ascertain that the router provides an uninterrupted internet supply to your computer.

If an unstable internet connection persists, contact your ISP (internet service provider).

The HP laserjet pro m521 printer not printing issue could occur due to a poor power connection. Overcome this by going with the steps given below.
Check the power connection of the printer by ascertaining that the power cable linked to the device isn’t loose.
Wiggle the cable to check if it is properly inserted. Check the cable for any damage.
Test the wall outlet for any power problems. Replace it if required.
Check if the toner cartridges are properly installed.
Open the access door of your printer and check if the drum assembly is intact.

Perform the solutions below to get a good print quality paper.
Print using different software on your computer.
Choose the paper type for setting the print job.
Check if the print quality is smeared, fuzzy, dark, curled, scattered, loose or small.
Verify the paper type setting on the device.
Check the status of the toner cartridge.
Make sure the input tray is loaded with paper.
Select the Service menu and go to Cleaning Page.
Load plain letter or A4 paper when prompted.
Select the OK button to commence cleaning.
Check the paper and printing environment.
Adjust the color settings, setting them to low will lead to dull prints.
If none of the HP Laserjet Pro m521dn troubleshooting issues work, replace the toner cartridges and reset the printer.

If this isn’t the issue, look for paper jams.
Use a flashlight and check the input and output trays for jammed paper.
The carriage access door needs to be opened.
Look for bits of paper that are stuck in the carriage path or rollers.
Remove this paper carefully as this could damage the interior components of the printer.
Open the Automatic Document Feeder assembly and check if the rollers inside are damaged or loose.
Replace these rollers if required.
Use a flashlight and check the rollers inside the input tray for any damage.
If none of the above solutions work, get in touch with our support team.

You can overcome scanning issues with the laserjet pro m521dn printer by updating the printer firmware. If this doesn’t work, carry forward the instructions given below.
The scanner lid needs to be opened.
Now check if the printer scanner setup platen is damaged.
Open the ADF assembly and take out any jammed paper if present.
Get the latest version of the HP Print and Scan Doctor tool installed on your computer.
Run the Diagnostics option and check if the scanning issue persists.
Remove the USB cable from the printer and reattach it.
Go to the Control panel option of your computer and choose Programs -> Programs and Features.
Select Uninstall the HP Print software opens.
Re-install the software to check if the HP Laserjet Pro m521dn troubleshooting issue persists.
If so, call our techies.