Power the machine off, hold + - and right buttons down and power up holding until the initialize screen displays then it will read Check 1: Adj. Platen. You can then let up on the buttons and scroll > to Check 8: Parameter, ENTER, should read Param1: Initialize, ENTER, > to Init. 8: Pump, ENTER, Initialize ok?, ENTER. Cancel out and power off then on.
Good Luck
Brian