Lexmark 4036-307 - Front Scan Module Output Level Error; Rear Scan Module Output Level Error; Front Scan Module Lamp Level too Low

2-18 Service Manual
4036-307, -308
844.00 Front scan module output level error
844.01 Rear scan module output level error
844.02 Front scan module lamp level too low
Step Action and questions Yes No
1 Check the flatbed lamp.
Is the lamp on brightly?
Go to step 3 Go to step 2
2
Is the flatbed lamp on dimly? Replace flatbed inverter
board
Replace flatbed lamp
3
Is the flatbed CCD cable securely
connected?
Replace flatbed optical
unit
Reset flatbed CCD
cable
Step Action and questions Yes No
1 Check the ADF lamp.
Is the lamp on brightly?
Go to step 3 Go to step 2
2
Is the ADF lamp on dimly? Replace flatbed optical
unit
Replace flatbed lamp
Step Action and questions Yes No
1 Check the flatbed lamp.
Is the lamp on brightly?
Go to step 3 Go to step 2
2
Is the flatbed lamp on dimly? Replace flatbed inverter
board
Replace flatbed lamp
3
Is the flatbed CCD cable securely
connected?
Replace flatbed optical
unit
Reseat flatbed CCD
cable