Oki ML390 - Page 166

Microline 390/391-Plus
CAUTION:
Check the contacts and connections of the control board. If good contact is not made at all connections
and ground points, false diagnosis will occur.
ALARM
Lamp
Status
10 12 15 17 20 PR
OP
Courie
r
Roma
n
Helv
ette
Orator Error
Conditi
on
Action
Blinking ON ON Internal
RAM
Error
Replace the
main control
board.
Blinking ON ON Serial
I/F
Connec
tion
Error
1.Reinstall
the serial
interface.
2.Replace
the serial i/f.
3.Replace
the main
control
board.
Blinking ON ON Serial
I/F
Time
Out
Error
1.Replace
the serial i/f.
2.Replace
the main
control
board.
Blinking ON ON Progra
m ROM
Error
1.Replace
the ROM.