Lexmark MX812
Pull out the hole punch box.
Empty the container.
Insert the emptied hole punch box back into the finisher until it clicks into place.
Hole Punch Unit (HPU) ? The Stapled Sheets Are Misaligned
The Wrong Hole Punch Feature Is Shown as Installed on Lexmark W840, W850, X85x and X86x Series Printers and MFPs