Front Scan Module Output Level Error; Rear Scan Module Output Level Error; Front Scan Module Lamp Level Too Low - Lexmark 4036-307 Service Manual

4036-307, -308

844.00 Front scan module output level error

Step Action and questions
1 Check the flatbed lamp.
Is the lamp on brightly?
2 Is the flatbed lamp on dimly?
3 Is the flatbed CCD cable securely
connected?

844.01 Rear scan module output level error

Step Action and questions
1 Check the ADF lamp.
Is the lamp on brightly?
2
Is the ADF lamp on dimly?

844.02 Front scan module lamp level too low

Step Action and questions
1 Check the flatbed lamp.
Is the lamp on brightly?
2 Is the flatbed lamp on dimly?
3 Is the flatbed CCD cable securely
connected?
2-18
Service Manual
Yes
Go to step 3
Replace flatbed inverter
board
Replace flatbed optical
unit
Yes
Go to step 3
Replace flatbed optical
unit
Yes
Go to step 3
Replace flatbed inverter
board
Replace flatbed optical
unit
No
Go to step 2
Replace flatbed lamp
Reset flatbed CCD
cable
No
Go to step 2
Replace flatbed lamp
No
Go to step 2
Replace flatbed lamp
Reseat flatbed CCD
cable