HP Deskjet 2720 not printing black

[Meerstern]

Hello,

my HP Deskjet 2720 prints only in color. In the last few weeks the black cartridge stopped printing or was printing in stripes. I have had the heads cleaned and the ink nozzle alignment done, and this is the second black cartridge I have inserted, without, moreover, having completely worn out the previous one. It was suggested that I clean the print head with alcohol, I haven't done that yet because I wanted to hear an opinion from this community first.

Now I need to print with some urgency and I have enough of this problem, what do you think I should do ?

Thanks in advance

[Betty0610]

@Meerstern

Welcome to the HP Support Community.

I'd be happy to help.

If this is happening with all black inks, then this could be a hardware issue.

I recommend you to contact the HP Support Team regarding this.

Link: https://www.hp.com/us-en/contact-hp/ww-phone-assist.html

Note:  Select the country accordingly to get the contact details for support.

Let me know if this helps.

If the information I've provided was helpful, give us some reinforcement by clicking the "Accept as solution" on my public post, that'll help us and others see that we've got the answers!

Thanks!

Have a great day!