7197 Series II Service Manual Chapter 3: Diagnostics
June 2011
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Level 2 Diagnostics
Level 2 diagnostics run during normal printer operation. When the following conditions
occur, the printer automatically turns off the appropriate motor, disables printing to
prevent damage, and turns on the green LED (flashes the green LED if the receipt print
head is too hot or the voltages are out of range):
Paper out
Cover open
Knife unable to go back to home position
Print head too hot
Power supply voltage out of range
See “Chapter 4: Troubleshooting” for more information about other conditions that may
occur and how to correct them.
Status LED Behavior
Power Off Off
Firmware Download Fast Blink
Level 0 Diagnostics Fast Blink
Paper Low Slow Blink
Temperature Error Fast Blink
Voltage Error Fast Blink
Cover Open Fast Blink
Paper Out Fast Blink
Knife Jam Fast Blink, then Slow Blink
All other states On
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