"PP Error"

"PP Error" means one of two things:

The ribbon needs to be changed,

or

There's a paper jam somewhere in the receipt-feeding mechanism

Option 1- the ribbon:
if print is very faint or register stops printing, replace it. See Replace register ribbon

If you still see the "PP Error" message:

• Unplug the register (tan plug on power strip on the side of the register cabinet, not the one on the floor)
• Wait a full minute
• Plug back in

Option 2- paper jam:

• Remove & replace the receipt paper rolls (check for anything that might be caught in there)
• Unplug as above, if needed.