When The Terminal Does Not Operate At All - Casio QT-6600 User Manual

Troubleshooting
Prompt message
E252 Enter customer name.
E253 Enter address.
E254 Enter phone number.
MC#nn
E259 Terminal out of order
YES:Retry
NO: Skip

When the terminal does not operate at all

Perform the following check whenever the terminal enter an error condition as soon as you switch it on. The
results of this check are required by service personnel, so be sure to perform this check before you contact a
CASIO representative for servicing.
Start
Is the terminal plugged in?
Is power on?
Do figures appear on the display?
Do keys function?
QT-6600 User's Manual
Meaning
Comminication error to the machine #nn during
auto updating scanning PLU.
Plug in the power cord.
Press <DISP ON/OFF>.
Is the electrical outlet active?
Contact CASIO service
representative
Is the mode position correct?
Contact CASIO service
representative
Action
Follow the prompt message.
Follow the prompt message.
Follow the prompt message.
Follow the prompt message.
YES
NO
Use other outlet.
Set to correct position.
85
E