Getting Fingers Dirty
- Sep 22, 2017
- Reaction score
- Printer Model
Oh! I didn't know that the black in the test was made by cym cartridges. That changes everything. Okay, I'll watch vids and refill cym and test again....1) The Black cartridge that is completely missing is a Pigment ink. Maybe it is a clog in the print head. Maybe it is a clog in the purge system. It can be an empty Black cartridge or lack of ink flow through the cartridge for whatever reason. Do not refill the old cartridge as you cannot be sure if the cartridge is the problem or not at this point. Get a new Black cartridge, which you said you have.
2) The black text and lines in the test page you posted use CYM to make Black. These appear to be Dye-based inks. There are missing and off color text and lines. This can be due to insufficient ink in the cartridge, poor ink flow through the cartridge, and/or variable print head clogging.
The funnel-shaped missing ink best seen in the Cyan and somewhat in the Magenta are classic signs of ink starvation in a Canon inkjet. I'd bet it is the same for your HP since they are similar thermal print head inkjet printers. The straight lines of missing ink typically represent clogged nozzles in the print head. Maybe this correlates to your HP.
These findings are precisely why we ask for a nozzle check. It tells us more than what you said.
I might be tempted to pull the print head and flush and soak it. Then install new cartridges and only print the test page to see what happens. Post the results. Do not print anything else unless you get a perfect result. If the CYM colors reappear properly but not the Black then you may need to do the purge system cleaning. But that is based on my limited reading on your printer. Use Google like I recommended and read as much as you can stand on your specific issue.
And, yes, you should look at the videos as they may offer some insights into your issue(s).