User-level and service-level diagnostics

ADF paper-path test

The paper-path test can be used to verify that various paper paths are working properly or to troubleshoot problems with tray configuration.

To print a paper-path test

1Press the MENU button.

2Select DIAGNOSTICS.

3Select PAPER PATH TEST.

4Select the source, destination, and number of copies (1, 10, 50, 100, 500) to be printed.

5Select PRINT TEST PAGE to start the paper-path test.

Diagnostic tests

The diagnostic tests verify the functionality of ADF-unit and flatbed-unit components. These tests are useful in identifying ADF-unit and flatbed-unit malfunctions.

To perform a diagnostic test

1Press the MENU button.

2Select DIAGNOSTICS.

3Select SCANNER. The following flatbed components can be tested.

●SENSORS; tripping various sensor flags causes a sensor-status message to appear on the control-panel display

•PS1 leading-edge paper-detect photo sensor (see “Leading-edge sensor (PS1)” on page 68)

•PS2 document-detect photo sensor (see “ADF-unit components” on page 56)

•PS10 flatbed-cover-open photo sensor (see “Scan-unit components” on page 55)

•PI1201 optical-unit home-position photo sensor (see “Optical unit” on page 65) (to trip this sensor, perform a copy job with the sensor-status screen displayed on the control panel)

●ADF OUTPUT MOTOR; activates the ADF motor and all of the ADF feed rollers (see “ADF document-feed system” on page 67)

●SCANNER MOTOR; activates the optical-unit motor, causing the optical unit to move back and forth in the flatbed (see “Optical unit” on page 65)

●PICKUP SOLENOID; energizes the ADF pickup solenoid (see “ADF document-feed system” on page 67)

●LIGHT SOURCE; illuminates the scanning lamp, which verifies that the inverter PCB and lamp are functioning properly (see “Scanning lamp” on page 66)

4Select CONTROL PANEL. The following control-panel components can be tested.

●LEDs; illuminates the three control-panel LEDs (see “Layout and operation” on page 30)

●DISPLAY; illuminates all of the control-panel-display pixels (see “Layout and operation” on page 30)

●BUTTONS; shows on the control-panel display a layout of the control-panel buttons and keys; when a button or key is selected on the control panel it is illuminated on the display, indicating that the button or key is functioning (see “Layout and operation” on page 30)

5Press the START button to begin a test. Press the STOP button to end the test.

126 Troubleshooting

C9148-90909