Oki 24DX manual Data cannot be received through the OKI HSP interface, 153, Ok?

0Data cannot be received through the OKI HSP interface

•Is the interface board (option) connected to the OKI HSP interface connector on the Main board properly?

•	No	Connect the interface board (option) to the OKI HSP interface connector
		properly.
▼	Yes	Is there any broken or bent pin in the interface board (option)?
•
•	Yes	Ask the user to replace the interface board (option).
▼
•	No	Replace the Main board.
▼	OK?
•
•	No	A trouble may exist in the interface board (option), interface cable or host side.
		Ask the user to check these items.

ASynchronous serial I/O error (ERROR 74)

•Are POWER connector of the Main board and Connection cord-wire (Figure 8-2 No.21) properly?

Are Connection cord-wire (Figure 8-2 No.21) and CN3 connector of the Power Supply Unit (AC120V or 230V) connected properly?

•	No	Connect the connectors properly.
▼	Yes	Is there any flaw or breake ?
•
•	Yes	Replace the connection cord-wire.
▼
•	Yes	Replace the Main board.
▼
• Is the printer recovered?
•	No	Replace the Power Supply Unit (High Voltage).
▼	YES	END
•

40930701TH DRAFT Vesion 153 /