Lexmark MX71X - Imaging Unit Smart Chip Service Check

Action Yes No
Step 3
Check the toner cartridge shutter button (B) for proper operation.
Is the component functional?
Go to step 4. Replace the toner
cartridge.
Step 4
Replace the toner cartridge.
Does the error remain?
Replace the toner add
motor. See
“Toner add
motor removal” on
page 434.
The problem is solved.
Imaging unit smart chip service check
Action Yes No
Step 1
Ensure that the imaging unit is installed properly.
Is the imaging unit properly installed?
Go to step 2. Reinstall the imaging
unit properly.
Step 2
Remove the imaging unit and install a different unit.
Does the error remain?
Go to step 3. Problem resolved.
Step 3
Ensure the cable for socket J45 on the controller board is properly
connected.
Is the above cable properly connected?
Go to step 4. Reseat the connection
or replace the cable.
Go to step 4.
Step 4
Ensure the imaging unit smart chip contact with cable is free from damage.
Is the imaging unit smart chip contact with cable free from damage?
Go to step 5. Replace the imaging
unit smart chip contact
with cable.
Go to step 5.
7463
Diagnostic information
244