The manual I have is Operation and Program Manual ER-420M. Could you please let me know which section to look in
The keys on the till are set up with the name of the items which we are selling (eg, toys etc). If we could get into Manager Mode and Report Mode would be a help and also we cannot reconcile the till at the end of the day. None of the Volunteers at the Charity shop are computer literate thererfore we find the manual not easy to understand.
Looking through the manual on page 66 is Service Mode Programming with the following headings - Clear all totals, clear grand total, clear PLU file, EPROM INFORMATION, memory allocation, assignment of functions to keyboard locations, RS232C Port.
What is PLU?
I have not been able to solve the problem. I think it is because we have been left with only 2 keys when the manual states 2sets with 5 keys.