HP Deskjet 2620. Printing fault. Black printing missing script or patiial print

[BigGuy5736]

When I print some of the lines are overlapping or only half th line shows. This only seems to happen in black

[sandytechy20]

@BigGuy5736

Welcome to the HP support community.

I understand that you are getting print quality issues, I am glad to assist you.

Did you make a copy and check if that prints fine?

Meanwhile:-

Print a Print Quality Diagnostic Report

1. On the printer control panel, press the Down Arrow  to scroll to Tools, and then press OK.

2. Press the Down Arrow  to scroll to Print Quality Report, and then press OK. The printer prints the test page.

If that does not print fine, follow these steps to fix the issue:-

Clean the printhead using an automated tool

1. Load letter or A4, unused, plain white paper into the paper tray.

2. On the printer control panel, press the Down Arrow  to select Tools, and then press OK.

3. Press the Down Arrow  to select Clean Printhead, and then press OK. The printer cleans the printhead, and then prints a printhead test page.

Refer to this HP document for further assistance:- Click here

Keep me posted.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers.