HP LASERJET ENTERPRISE M775dn - Page 167

Home button is unresponsive
Figure 2-5 Home button is unresponsive
Y
N
N
Y
Home button
unresponsive
Open the
diagnostic function.
Perform the Home
button test.
Does the virtual LED
illuminate green when
the Home button is pressed?
Turn the product power off,
and then on again.
Open the
diagnostic function.
Perform the
Home button test.
Does the virtual LED
illuminate green when
the Home button is pressed?
Replace the
control panel.
Do not replace the
control panel.
ENWW
Troubleshooting process
135