Sound test
1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests 
on page 118.
2. Use the down arrow   button to scroll to 5 Sound Test, and then press the OK button to select it.
After selecting the 5 Sound Test, the printer emits a series of audible tones.
NOTE: Touch any key to exit the test.
Figure 2-40  Open the sound test
130 Chapter 2   Solve problems ENWW