what does E1 orEI mean on my olympia cm 812?

every time I try to perform a function on the register it comes up with an E1 or EI on the readout

fab
July 2014

Related Questions ...

How can I change the date on a Olympia S2200 cash register?

How to fix my Olympia CM701?

how to set time and date on olympia CM726?

how remove password on olympia cm721 plus?

olympia cm 1810 plus locked?

Where can I buy parts for Olympia CM220 Cash Register?

Where can I source a spindle for an Olympia CM1810+ cash register?

how do i change the time on olympia 721 cash register?

olympia CM 812 ?

Replacement Keys for Olympia S2200 register?

olympia cm 812 ?

Typo in cash register - po 15150 iso 150?

howtomendit.com for free repair help, information and advice.

Mend Cash Registers ...