Rear Scan Module Output Level Error; Front Scan Module Lamp Level Too Low; Front Scan Module Cable Failure Or Scc Card Failure Ccd Channel Failure; Rear Scan Module Cable Failure Or Scc Card Failure Ccd Channel Failure - Lexmark 4600 MFP Service Manual

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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 SDF 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?

845.00 Front scan module cable failure or SCC card failure CCD channel failure

Step Action and questions
1 Check flatbed CCD cable.
Is the cable loose?
2 Is flatbed CCD cable broken?

845.01 Rear scan module cable failure or SCC card failure CCD channel failure

Step Action and questions
1 Check ADF/CCD data cable.
Is the cable loose?
2 Is ADF/CCD data cable broken?

845.02 Cable/SCC failure

Step Action and questions
1 Is the flatbed CCD data cable securely attached?
2-16
Service Manual
Yes
Go to step 3
Replace flatbed optical
unit
Yes
Go to step 3
Replace flatbed inverter
board
Replace flatbed optical
unit
Yes
Reseat flatbed CCD cable
Replace flatbed CCD cable
Yes
Reseat ADF/CCD data cable
Replace ADF/CCD data
cable
Yes
Replace the flatbed
CCD data cable
No
Go to step 2
Replace flatbed lamp
No
Go to step 2
Replace flatbed lamp
Reseat flatbed CCD
cable
No
Go to step 2
Replace scanner control
board
No
Go to step 2
Replace scanner control
board
No
Reseat flatbed CCD
data cable