Imaging Unit Smart Chip Service Check - Lexmark MX71x Service Manual

Action
Step 3
Check the toner cartridge shutter button (B) for proper operation.
Is the component functional?
Step 4
Replace the toner cartridge.
Does the error remain?

Imaging unit smart chip service check

Action
Step 1
Ensure that the imaging unit is installed properly.
Is the imaging unit properly installed?
Step 2
Remove the imaging unit and install a different unit.
Does the error remain?
Step 3
Ensure the cable for socket J45 on the controller board is properly
connected.
Is the above cable properly connected?
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?
Yes
Go to step 4.
Replace the toner add
motor. See
motor removal" on
page
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Diagnostic information
244
No
Replace the toner
cartridge.
The problem is solved.
"Toner add
434.
No
Reinstall the imaging
unit properly.
Problem resolved.
Reseat the connection
or replace the cable.
Go to step 4.
Replace the imaging
unit smart chip contact
with cable.
Go to step 5.
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