Toner Level Sensing Error Service Check - Lexmark MX71x Service Manual

Toner level sensing error service check

Action
Step 1
Ensure that the toner cartridge is installed properly.
Is the toner cartridge properly installed?
Step 2
Remove the existing toner cartridge and install a different cartridge.
Does the error continue?
Step 3
Ensure the cable for socket JCTLS on the controller board is properly
connected.
Is the connection properly connected?
Step 4
Ensure the toner low / imaging unit high voltage contact is free from
damage.
Is the toner low / imaging unit high voltage contact free from damage?
Step 5
Reset the machine.
Does the error continue?
Toner cartridge smart chip error service check
Action
Step 1
Ensure that the toner cartridge is installed properly.
Is the toner cartridge properly installed?
Step 2
Remove the existing toner cartridge and install a different cartridge.
Does the error remain?
Step 3
Ensure the cable for socket "TONER UNIT" on the controller board is
properly connected.
Is the above cable properly connected?
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Replace the controller
board. See
board removal" on
page
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Diagnostic information
242
No
Reinstall the toner
cartridge properly.
The problem is
resolved.
Reseat the connection
or replace the cable.
Go to step 4.
Replace the toner low /
imaging unit high
voltage contact.
The problem is
"Controller resolved.
422.
No
Reinstall the toner
cartridge properly.
Problem resolved.
Reseat the connection
or replace the cable.
Go to step 4.
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