HP3520 will not print black ink

[Hunter10]

Sample print shows Red triangle with number one in it    red allow down and Important

[Jeet_singh]

@Hunter10,

Thank you for posting your query on HP Support Community,

Are you using genuine HP Ink cartridges or refilled ink cartridges.

Let's try these steps here: 

Perform a Hard reset on the printer and make sure that the printer is connected directly to the wall outlet and not to the surge protector.

Remove all the ink cartridges and then try to perform a hard reset on the printer.

With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.

Remove USB cable, if present.

Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.

Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord and then plug back the power cord to the printer.

Turn on the printer and wait till warm-up period finishes and the printer is idle.

Now insert the ink cartridges and then try to print a test page and check if it works.

If the issue persists, I would suggest here is to Print the Print quality report: 

1. Load plain, white paper into the paper tray.

2. On the printer control panel, press the down arrow  to select Settings, and then press OK.

3. Press the down arrow  to select Tools, and then press OK.

4. Press the down arrow  to select Print Quality Report, and then press OK.

   The report prints.

Evaluate the report for any defects. 

• If there are defects found, try the steps mentioned in this document. 
• You may also try to clean the ink cartridge contacts and refer to this document for solution - Click here

Let me know how it goes for further assistance.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!