Lexmark Optra Color 1200 Service Manual page 47

5050-001
Message
920 Fuser Error
Fuser Heater Trouble
923 Fuser Error
Fuser Thermistor Open
• 930 = Yellow
93X
• 931 = Magenta
• 932 = Cyan
• 933 = Black
Printhead Error
939 COMM Error
Printer Controller Board
941 Code ROM Error
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 and the
fuser oil coating roller. 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 and
the fuser oil coating roller. 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 and the fuser oil
coating roller.
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.
Replace the printer controller board
(11G0324).
Replace the EEPROM code
controller, solid state drive (J10) on
the RIP control card.
Diagnostic Information
2-5