Action Yes No
Step 10
a Make sure that the toner cartridge is properly installed and free
of damage.
b Make sure that the smart chip contacts are free of corrosion
and contamination.
c Make sure that the developer roller surface is free of damage.
d Make sure that the toner HVPS contacts are free of corrosion
and contamination.
e Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Go to step 11. The problem is
solved.
Step 11
Replace the toner cartridge.
Does the problem remain?
Go to step 12. The problem is
solved.
Step 12
Measure the distance between the horizontal defects.
Is the distance equal to 44 mm?
Go to step 13. Go to step 14.
Step 13
Replace the transfer roller. See
“Transfer roller removal” on
page 242.
Does the problem remain?
Go to step 14. The problem is
solved.
Step 14
a Make sure that the transfer roller is properly installed and free
of damage and contamination.
b Make sure that the HVPS contact spring is properly connected
to the transfer roller.
c Make sure that the transfer roller spring is properly installed.
d Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Go to step 15. The problem is
solved.
Step 15
a Reseat the transfer roller.
b Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Go to step 16. The problem is
solved.
3400-48x
Diagnostics and troubleshooting
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