Operator Panel Lcd/Status Led/Buttons Service Check - Lexmark 13P0150 - C 750dtn Color Laser Printer Service Manual

Step Action and Questions
2
Does resetting the media type fix the problem?
3
Fuser Settings - Set the fuser to "High" in the CE menu.
Does setting the fuser to "High" fix the problem?
Light lines or streaks appear on the page
Single color streaks in non-print areas are most likely caused by a cleaner problem in the
print cartridge. Replace the print cartridge.
All the colors streaking at a different spot on each page is most likely caused by a
damaged ITU Assembly. Replace the
If only one color streaks in the printed area, go to step 1.
Step Action and Questions
1
Print Cartridge Check - Try a new print cartridge.
Doe a new print cartridge fix the problem?
2
Printhead Check - The printhead lens may be contaminated
by toner. Check for any signs of contamination on the lens
of the printhead.
Is the printhead contaminated?

Operator Panel LCD/Status LED/Buttons Service Check

Use this service check to check both the operation of the panel buttons and to test the
LCD display for correct operation.
Replace the operator panel assembly if the LCD display functions normally but the LED
does not come on.
If one or more of the operator panel buttons do not operate correctly, go to
page
If any of the following symptoms occur, go to
•
•
•
5060-XXX
2-78.
Operator panel LCD is blank/Power On/Status LED off
Operator panel LCD is blank/Power On/Status LED on
Operator panel LCD displays all diamonds/5 beeps/Power On/Status LED on
Yes
Problem
Solved
Problem
Solved
"ITU Assembly" on page
Yes
Problem
Solved
Replace the
failing
Printhead. Go
to
"Printheads"
on page
"Step B" on page
Diagnostic Information
No
Go to Step 3
Replace the
"Fuser" on
page 4-15
4-40.
No
Go to Step 2
Call your next
level support
4-33.
"Step A" on
2-78.
2-77