Oki OL1200, Руководство по обслуживанию, Страница: 173 / 272

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Service Guide OL1200
Chapter 6 Troubleshooting Procedures
8. Data from the host not received via the serial interface.
Is message displayed?
Yes Select the auto interface or RS232C for the host interface in menu level 1.
No Do the following items selected for RS232C SERIAL in menu level 2 coincide with
those selected at the host side?
FLOW CONTROL PARITY
BAUD RATE MIN. BUSY
DATA BITS
NO If the selection differs between the printer and the host, change the setting of the
above items in menu level 2 so as to coincide with the setting at the host side.
Yes Is the connector of the serial interface cable connected to the printer properly?
No Connect the connector of the serial interface cable to the printer properly
Yes Is there any defect in the serial interface cable (broken or bent pin, broken wire)?
Yes Replace the serial interface cable.
No Perform the loop back test using the loop test function in the system maintenance
mode. (To make this test, it is necessary to form the following loop back connector.
Connect the loop back connector to port instead of connecting the host.)
Is displayed?
Yes Replace the serial interface cable.
Is the printer recovered?
YES END.
No Replace the Control board.
No Replace the Control board or ask the user to check the hardware and software at the
host side.