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Service Guide ML395/395C
Chapter 4 Failure & Repair Analysis
4.6 FAULT ALARMS
4.6.01 General Information
When an error condition exists, the ALARM LAMP will flash. The operator panel is used to display printer
error conditions. The type of error condition can be determined by decoding the operator panel lamps.
Refer to the Alarm Codes Table in this section to identify both the error condition and the recommended
corrective action for each condition.
NOTE: The Alarm Codes Table only applies in situations when the ALARM LAMP is flashing.
Alarm Codes Table
ORA
UTL NLQ 10 15 20 PROP Alarm
Description
Cod
e
Corrective
Action
ON ON MPU Internal
RAM Error
11 Replace
controller
board
ON ON Program
ROM Error
12 Replace
Master ROM
ON ON ON Resident CG
Error
13 Replace
controller
board
ON O
N
ON EEPROM
Error
15 Replace
EEPROM
ON O
N
ON MPU
Watchdog
Timer Error
16 Replace
controller
board
ON ON Slave CPU
ROM/RAM
Error
21 Replace
Slave ROM
ON ON Slave/Master
Matching
Error
22 Replace
Master /
Slave ROM
ON ON ON Master/Slave
Interface
Error
23 Replace
controller
board
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