Motor test This test verifies that the three motors on the 2,000-sheet input unit are functioning properly. 1 Remove the back cover from the 2,000-sheet input unit (see page 300). 2 Open tray 4 and the vertical transfer unit (VTU). 3 Set the DIP switches on the 2,000-sheet input unit’s controller PCA for the motor test. (See page 473 for an explanation of the settings.) 4 Use the switch that is located on the unit’s power supply to switch to diagnostic mode. • If the motors are working properly, they rotate continuously. • If the motors do not rotate, replace the corresponding field replaceable unit: the paper pick-up assembly, the VTU, or the paper deck drive assembly.
5 To stop the test, turn the switch on the power supply back to operational mode and reset the DIP switches on the controller PCA to the off position. 474 Chapter 7 - Troubleshooting EN