Lexmark 812 Solving printing problems, Symptom, Cause, Solution, The operator panel, diamonds

15 Solving printing problems

Symptom	Cause	Solution
The operator panel	The printer self test failed.	Turn the printer off, wait about 10 seconds, and turn
display is blank or		the printer back on.
displays only		Performing Self Test appears on the display.
diamonds.
		When the test is completed, the Ready message is
		displayed.
		If the messages do not appear, turn the printer off
		and call for service.
Jobs do not print.	The printer is not ready to	Make sure Ready or Power Saver appears on the
	receive data.	display before sending a job to print. Press Go to
		return the printer to the Ready state.
	The output bin is full.	Remove the stack of paper from the output bin, and
		then press Go.
	The specified tray is empty.	Load paper in the tray.
		See Loading the trays for detailed instructions.

42