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Power-on self test (POST) sequence
When you turn the printer on, it performs a Power-On Self Test. Check for correct POST functioning of the base
printer by observing the following:
The operator panel turns on and displays the Lexmark logo.
1.
A progress bar displays.
2.
The LED turns on.
3.
4.
The main fan turns on.
The machine performs the following tests:
5.
Sensor check
a.
Motor check—initializes the following motors:
b.
Cam motor
i.
ii.
EP drive motor
Fuser motor
iii.
iv.
Cartridge motor
Supplies check
c.
Note: The LED blinks red and an error message displays on the operator panel screen if the machine
detects errors during these test phases.
The LED light indicator blinks.
6.
The loading screen displays.
7.
Symptom tables
Printer symptom table
Symptom
Dead printer
Operator panel—one or more buttons do
not work.
Operator panel—display is blank. Printer
sounds five beeps.
Operator panel—display is blank.
Operator panel—stripes display, distorted
display, and other display issues
Tray 1 missing
Tray linking will not work.
Front cover locks, and will not open
Action
Go to
"Dead printer service check" on page
Go to
"One or more operator panel buttons fail" on
page
2-130.
Go to
"Operator panel display blank, five beeps, and LED is
off" on page
2-130.
Go to
"Operator panel display blank, five beeps, LED on" on
page
2-130.
Go to
"Stripes display, distorted display, and other display
issues" on page 2-131
Go to
"Tray 1 missing service check" on page
Go to
"Tray linking service check" on page
Go to
"Front cover locked in place" on page
5026
2-127.
2-139.
2-140.
3-36.
Diagnostic information
2-9
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