Toner level sensing error service check
Action Yes No
Step 1
Ensure that the toner cartridge is installed properly.
Is the toner cartridge properly installed?
Go to step 2. Reinstall the toner
cartridge properly.
Step 2
Remove the existing toner cartridge and install a different cartridge.
Does the error continue?
Go to step 3. The problem is
resolved.
Step 3
Ensure the cable for socket JCTLS on the controller board is properly
connected.
Is the connection properly connected?
Go to step 4. Reseat the connection
or replace the cable.
Go to step 4.
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?
Go to step 5. Replace the toner low /
imaging unit high
voltage contact.
Step 5
Reset the machine.
Does the error continue?
Replace the controller
board. See
“Controller
board removal” on
page 422.
The problem is
resolved.
Toner cartridge smart chip error service check
Action Yes No
Step 1
Ensure that the toner cartridge is installed properly.
Is the toner cartridge properly installed?
Go to step 2. Reinstall the toner
cartridge properly.
Step 2
Remove the existing toner cartridge and install a different cartridge.
Does the error remain?
Go to step 3. Problem resolved.
Step 3
Ensure the cable for socket "TONER UNIT" 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.
7463
Diagnostic information
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