Also you need food safe ink, betting they are normally offset printed. Personally if the liability outweighs the reward I pass. Trying to do every job that is not in your area of expertise is a sure way to get caught up in a bad situation.
SOLVED!!!!!!
The lever sensor was installed upside down by previous owner or tech who last cleaned it. It looks as if it should go the other way. I was getting desperate and thought I would try anything so I decided to pull it and install upside down and to my surprise it started working. Hope this might help someone else.