Lexmark Optra Color 1200 Service Manual page 51

5050-001
Message
992 Engine Error
Abnormal Humidity Sensor
Engine ROM/RAM
993
Printer Controller Error
1. Be sure connector CN121 is
properly connected to the printer
controller board. Also be sure the
connector on the humidity sensor
card is plugged in correctly.
2. Replace the humidity sensor
(11G0571).
3. If you still have the problem,
replace the printer controller
board.
1. Try to recover by turning power off
and on.
2. Replace the U107 EEPROM
(11G0325) on the printer
controller board.
3. If you still have the problem,
replace the printer controller
board (11G0324).
4. If you still have the problem,
replace the RIP controller card
(11G0604).
Diagnostic Information
2-9