Hi, here is what I did.
I completly removed the printer from my computer and restarted.
Added it back with HPLIP. (see screen shots below)
HPLIP defaults my printer to 8x10 and only give my the option for 8.5x11.
You can see in one of the screenschot the driver that is used and can see that it is one provided by HPLIP as none of the built-in Linux ones work.
I created a test document in LibreOffice(Please ignore the black text part my ink is very low)
LibreOffice for some reason will default my printer to support 8x10 and on the print config page sets the page to 8.5x11.
I tried a few prints with some different settings.(see below)
I also included screenshots of the previews of the prints from LibreOffice so you can see how LibreOffice says they should have come out.
First I tried with everything set to 8x10.
Then with everything at the default way the software sets it.
Then with everything set at 8.5x11.
I also printed to a PDF and tried to print the file from HPLIP.(the last image)
Every print I did will always cut off at the same point leaving a big gap at the bottom of the page where it refuses to print to.
