Oki OL1200 Service Manual page 148

LCD Status Messages:3-5
Code(nn) Error
10 An error was detected by program
ROM check.
20 An error was detected by font ROM
check.
30 An error was detected by resident RAM
check.
40 An error was detected by EEPROM
check.
50 An error was detected by optional
software ROM.
60 An error was detected by optional RAM
check.
Service Guide OL1200
Chapter 6 Troubleshooting Procedures
A fault occurred in the printer.
Turn the power off, then on to release the error display. If
the error display cannot be released by this procedure, call
a service person.
- Replace the program ROM. (Location: 05D,
07C)*
- Replace the Main board (AOLM-PCB).
Note: When replacing the Main board, install
the EEPROM mounted on the replaced Main
board.
- Replace the program ROM. (Location: 06D,
07D)*
- Replace the Main board (AOLM-PCB).
Note: When replacing the Main board, install
the EEPROM mounted on the replaced Main
board.
- Replace the Main board (AOLM-PCB).
Note: When replacing the Main board, install
the EEPROM mounted on the replaced Main
board.
- Replace the EEPROM.
(Location: 04G)*
- Replace the Main board (AOLM-PCB).
Check the optical software ROM for proper
connection.
Replace the optional software ROM.
Check the optional RAM for proper
connection.
Replace the optional RAM.
Remedy
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