User guide

Chapter 5: Troubleshooting
B780 UG00001 B 10/06 B780 Two-Color Thermal/Impact Hybrid Printer: User Guide
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Printer beeps
Condition Possible causes What to do
Printer beeps in a single, double, or The printer has a problem Contact a service representative.
triple pattern at rst power on. with its electronics.
The on-line paper status error light
blinks in the same pattern, and the
printer won’t power up.
Printer beeps during normal The printer may be programmed Consult your application software
operation. to beep during normal operation manual.
by the software application used
on the host computer.
Printer will not print
Condition Possible causes What to do
The on-line, paper status, or error light The receipt paper may be out, the Check that the receipt paper is properly
blinks and the printer won’t cover open, the knife jammed, the loaded and covers are closed. See the
print. supply voltage out of range, or the table on page 41. If the problem
print head temperature out of range. continues, contact a service representative.
Printer has no power (light not on) Power supply may be defective. If the power supply is plugged in but
does not come on, you need to order a
new power supply. Contact a service
representative.
Printer has power, doesn’t Cables may not be connected Check all cable connections. Check
print properly. that the host computer and power
supply are both on (the power supply
is turned on by plugging it into a live
outlet). Look for the green power light
to show that the printer has power .
See “Connect the cables” on page 19.
DIP switches not set correctly. On rear of printer, check the switch
setting. DIP switch one should be o
(up) for normal operation.
All other causes. Contact a service representative.