Action Yes No
Step 20
Replace the HVPS. See
“HVPS removal” on page 231.
Note: Make sure to perform the HVPS characterization when
replacing the HVPS.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Vertical dark streaks with print missing 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.
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Diagnostics and troubleshooting
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