Oki MICROLINE 320 Turbo Maintenance Manual page 112

10-2 (RS232C I/F)
Is the correct cable used?
Yes No
Change I/F cable.
Is ALARM LED blinking?
No Yes
See tables 6.2 and 6.3 for the troubleshooting.
Make sure of the parameters for RS232C in the menu are correct.
Remedied?
No Yes
End
Is + 8V supplied on Driver board?
Yes No
Remove RS232C I/F Board.
Is the + 8V supplied on the Driver board?
No Yes
Replace RS232C I/F board.
Replace Driver board.
Replace RS232C board.
Remedied?
No Yes
End
Replace Driver board.
42089201TH Rev.4
Baud rate
Bit length
Parity
Protocol
Busy signal and its polarity
Printer I/F pin assignment.
TXD 2 pin,
RXD 3 pin,
SSD 11 pin,
DTR 20 pin,
DSR 6 pin.
Driver Board
20 CN2
••••••••••••••••••••••
0V (pin10)
+8V (pin20)
Oki Data CONFIDENTIAL
1
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