screen black

[tee]

I have been working on this hp laserjet MFP 500 and
the control panel wiil only light up after the unit has been on for
a couple of hours. It prints normally. The backlight comes on, then I cycle the power and
everything works great. Is this just a bad control panel?

[kaborwen]

I have been working on this hp laserjet MFP 500 and
the control panel wiil only light up after the unit has been on for
a couple of hours. It prints normally. The backlight comes on, then I cycle the power and
everything works great. Is this just a bad control panel?

hey,
did you get solution? I have same problem.