User guide

Diagnostic Procedure

The following steps describe how to select the diagnostic tests.

1. Press and hold the Unit Attention button for eight seconds when powering up the

printer. If let go too soon, the printer enters cleaning mode. If this happens,

power off and then on holding the Unit Attention button until the printer drawer

opens.

In diagnostic mode, the Missing CD LED flashes at a fast rate. The printer

automatically responds by opening the drawer and illuminating the Missing CD

LED to indicate no test is selected.

Note: Diagnostic mode operates the drawer at a faster rate than normal.

2. Press the Unit Attention button the number of times specified under the Test

Number column in the table on page 58, and hold the button down on the last

counted press for one second. The Missing CD LED turns off.

If the button is not depressed within three seconds, the test select count returns to

zero and the Missing CD LED lights.

Note: Pressing the Unit Attention button during a test will abort the test. If an error occurs

during a test, the Unit Attention LED lights up and the Missing CD LED flashes the

error code. See the error code listing, on page 58, for details.

Note: You can exit the diagnostics mode by turning off the printer.