Instruction manual

A758 Owner’s Guide Chapter 3: Using the Printer
September 1999 39
Basic Troubleshooting
The A758 printer is a simple, generally trouble-free printer, but from time to time
minor problems may occur. For example, the power supply may be disconnected
or the thermal printhead may overheat.
The On Line, Paper Status, Error LED on the operator panel may signal that
something is wrong. The light on the front right side of the printer is used only to
indicate when a form is inserted properly. It does not indicate an error.
For some problems, the printer communicates the information to the host
computer and relies on the application to indicate what the problem is.
The information on the following pages describes some problems that you may
encounter: problems that you can easily fix, and others that you will need to
contact a service representative for.
You may be able to correct many of the conditions or problems without calling
for service. However, if a problem persists, contact a service representative. See
“Contacting a Service Representative” at the end of this chapter.
If something is wrong with the printer, take the following general steps:
♦
Cycle the power of the printer and note its behavior.
♦
Check the On Line, Paper Status, Error LED and compare its behavior to the
table below.
Status LED Behavior
Power Off Off
Firmware Download Fast Blink
Level 0 Diagnostics (entered at
power on or in reset)
Fast Blink
Paper Low
Temperature Error
Voltage Error
Slow Blink
Cover Open (receipt, slip or flip)
Paper Out
Carriage Jam
Slip Jam
Flip Jam
Knife Jam
Fast Blink
All other states On
♦
Test the receipt printer or slip printer by printing a sample test print as
described elsewhere in this document.
♦
Determine if the problem is with the thermal receipt printer or the impact
slip printer and refer to the tables on the following pages.