Lexmark MX811
Step 1
Press the Sleep button on the printer control panel.
Does Ready appear on the printer display?
The problem is solved.
Go to step 2.
Step 2
Turn off the printer, then wait for about 10 seconds, and then turn the printer back on.
Do Please wait and Ready appear on the printer display?
Turn off the printer, and then contact customer support.
Blank or Intermittent Display for Lexmark MS71x, MS81x, MX71x, & MX81x
Lexmark X46x, X65x, X86x,&X73x MFPs ‑ The Printer Display Temporarily Goes Blank for Up to 50 Seconds During Initial Power On