Actually, another common "fail to eject ink" cause for piezo print heads is air-binding in the ink chamber just behind the nozzle opening. Air ain't as nearly as incompressible as ink.
The "drain-line squeezer" is a peristaltic pump. Yes, the maximum vacuum generated is quite low, determined...
...or you can degas the ink before refilling by heating it slightly below the boiling point and cooling it before refilling (not recommended without testing, first).
Thanks for the honor!
This added image below was taken with a 6.5mm fish-eye lens on a DX (APC) sized camera, wide open (f3.5). It's performance is quite remarkable. This scene, taken in one shot (no stitching), covers about a 165+ degree horizontal field of view.
Just to add a little more...
Whew! Finally got the alarm "Ink Tank Nearly Full" alarm after many years.
Disassembled the printer (actually not too hard).
Found the purge unit submerged in black paste and wiped most of it off. Only about 1/2 the "diapers" absorbed anything!
Removed the old diapers, cleaned the base...
Can your printer print other files (images, word processing files, web pages, etc.) successfully?
Do other PDF files openned in Adobe Reader print successfully, or is it just one file that is problematic?
If so, more than likely, you are experiencing a software issue rather than a printer...
All inkjet printers can suffer from "drying nozzles". All such printers have a "parking/cleaning" station for the print head that is "supposed" to seal the nozzles from ambient airflow between print sessions.
For black text/line drawing doc printing, a laser printer is less trouble and can...
Those KINDA look like OEM carts to me.
Anyone else care to chime in?
If they are not OEM carts, DO NOT USE THE YELLOW CART!!! REALLY!!!
If it is non-OEM, then you run the risk of "yellow jello", clogging that print head channel.
Use the carts marked "start-up" first!!!