Horizontal white lines check
Action Yes No
Step 1
a Make sure that the toner cartridge is supported.
b Make sure that the toner cartridge and imaging unit are not
empty.
c Check if the toner cartridge is new.
Is the toner cartridge new?
Go to step 2. Go to step 3.
Step 2
Make sure to remove the packing material on the toner cartridge
and imaging unit.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
a Clear the paper path of debris and contamination.
b Remove, and then insert the imaging unit and toner cartridge.
Note: Shake the toner cartridge and imaging unit before
inserting them.
c Perform a POR.
d Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
a Make sure that the imaging unit 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 photoconductor roller surface is free of
damage.
d Make sure that the imaging unit 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 5. The problem is
solved.
3400-48x
Diagnostics and troubleshooting
57
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