When I click on the value window to type in a number it says -/~… I try typing in a number and it gives an error message that I need a range, so I tried to type in just -.01- -.02 and it just clears the screen and goes back to whatever value was in there. I feel like I can also hear a real tiny voice coming from the printer that says “dummy” and giggles at me. I got so frustrated I re-flashed the old CR pad