While you wait for answers, we may have found some information which could help you.
Click here for Where Manual CmReplacement Keys for Olympia S2200 register?
Typo in cash register - po 15150 iso 150?
How can I change the date on a Olympia S2200 cash register?
olympia CM 812 ?
How to fix my Olympia CM701?
Where can I source a spindle for an Olympia CM1810+ cash register?