(106 intentionally excluded)104 Communication Loop-back Test (Continuous Loop)

1Remove the interface cable from the printer.

2Make sure the DIP switches on the signal interface board have been pulled toward the printer’s back cover. Close the back cover.

3Install the RS-232C and RS-422 loop-back connectors, found in the tool kit mounted inside the right printer cover. If you do not have loop-back connectors, jumper the connections as outlined in Table 5-24,“RS-232 Loopback Connections,” on page 5- 21 and Table 5-25,“RS-422 Loopback Connections,” on page 5-21 .

4Go to: 104

5Press: READY to run the test.

6If an error is detected, the error code is displayed briefly and the test continues. Note the error code and check the “Error Code/TAG Cross-Reference” on page 2-3to determine which TAG to follow.

7If no errors are found, the test continues to loop. Allow the test to continue for at least one minute.

8Press: STOP to exit. (For some errors, you may have to power-on-reset the printer.)

9Remove the loop-back connectors.

10Reinstall the interface cable.

105 EIGS Program RAM Test (Continuous Loop)

1Go to: 105

2Press: READY to run the test.

3If an error code appears before the test has run for five minutes, look up the code in “Error Code/TAG Cross-Reference” on page 2-3to determine which TAG to follow.

4Otherwise, a “201” may display after about five minutes, indicating that the test has run successfully.

5Power-on-reset the printer to exit.

Note

This test does not run on printers with MIGS boards.(106 intentionally excluded)

5-22

Diagnostic Tests