Lexmark Optra Color 1200 Service Manual page 43

5050-001
Message or Symptom
Error
919 Fan Error
Power Supply Fan Alarm
920 Fuser Error
Fuser Heater Trouble
923 Fuser Error
Fuser Thermistor Open
93X • 930 = Yellow
• 931 = Magenta
• 932 = Cyan
• 933 = Black
Printhead Error
2-4
Service Manual
Action
1. Be sure motor connector
CN116 is connected properly
on the printer controller board.
2. Replace the fan (11G0322).
3. Replace the printer controller
board (11G0324).
1. Remove the fuser heater cable
from the power supply (CN602)
and check it for continuity. If
there is no continuity in the
heater wire, replace the fuser
heater (11G0348 115 V,
11G0549 230 V). If there is no
continuity in the thermostat, or it
does not equal 240K Ohms at
25 degrees C (room
temperature), replace the fuser
thermostat (11G0353). If the
thermal fuse is open, replace it.
2. If there is continuity, and the
thermostat is good, replace the
power supply. If this doesn't fix
the problem, replace the printer
controller board.
1. Be sure thermistor connector
CN119 is connected properly to
the printer controller board.
2. Short pins 1 and 2 of connector
CN119 and turn the power on.
3. If an error displays, replace the
printer controller board. If an
error does not display, replace
the fuser thermistor.
1. Be sure all cables to the
printhead controller board are
correctly seated.
2. Replace the appropriate color
printhead and printhead
EEPROM.
3. If you still have the problem,
replace the printhead controller
board (11G0555).
4. Do the printhead adjustments.
See Chapter 3, Diagnostic Aids.