Ubuntu 20.04, all up to date.
I just scanned a page using the Ubuntu standard Scan-app and a Canon LiDE 110 and saved it as a .png and .pdf.
I have a Brother HL-L2340D printer that is working fine with GIMP, Xed etc. It will not print the scanned document in either .pdf or .png format. I have checked Permissions and the sole User has Read/Write including group. The Owner is the sole User.
I loaded it into GIMP and it shows "Printing," then "print completed" but nothing comes out. I can load in a .jpg of something else to GIMP and it prints that fine, just not the scanned one.
I converted it to Grayscale in GIMP and still nothing.
What do I need to do to get this scanned doc to print?