Serial Interface Diagnostic; General Information; Procedure - OKIDATA Pacemark 3410 Service Handbook

4.8.03

Serial Interface Diagnostic

General Information

The Serial Interface Diagnostic is used to verify the proper operation of the serial port and its
associated circuitry.

Procedure

To perform the Serial Interface Diagnostic, follow this procedure.
1. Verify that continuous feed paper is installed.
2. Verify that the ribbon is correctly installed.
3. Verify that the width of the installed paper matches the paper width menu setting.
4. Select the serial interface on the interface board.
5. Place a DB-25P Loopback Test Connector on
the serial port. Refer to the diagram for the
correct configuration.
6. Press PRINT QUALITY and CHARACTER
PITCH at the same time to place the printer in
Menu Mode.
When in Menu Mode, the functions printed
below the operator panels switches are active.
7. Press GROUP until Serial I/F prints.
8. Press ITEM until Diagnostic Test prints.
9. Press SET until YES prints.
10. Press EXIT to save the change and exit Menu
Mode.
11. The Serial Interface Diagnostic will begin.
12. If this diagnostic fails, go to RAP 09.T
13. To return the printer to normal operation, reset
the Menu.
14. Follow steps 6, 7, and 8.
15. Follow step 9, but press SET until NO prints.
Failure Analysis 4 - 44 Pacemark 3410 Service Handbook
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