Instruction manual

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7. Troubleshooting
7. Troubleshooting
Check the following points before calling for servicing.
Symptom Cause (→ remedy)
The power lamp does not light up when
the power switch is turned ON.
• AC adapter is not connected.
• AC adapter is not receiving power.
• The batteries are out.
No data can be received from the balance. • The connection cable is disconnected. (→ Switch off
EP-90 and the balance, then connect the cable properly.)
• The balance is not active for sending data, e.g., the
balance is displaying a menu.
• DIP switch settings have not been made effective. (→ Set
DIP switch while power is off, then turn the power on.)
• Sequence of switching power of EP-90 and the balance
was wrong. (→ See 3.4 Connecting the Balance)
The printed characters deviate.
No paper feed occurs.
• Paper jam is occurring. (→ Reload printer paper.)
No key entry can be made. • Printout is in progress.
• Data is being received from the balance.
No key switch on the balance works. • There is a data I/O error. (→ Switch off once, then switch
on again.)
The following data has been printed out. • The test program for servicing is running. If the power
switch is turned on with FEED key held down, the test
program is initiated.