Sharp MX-B427PW User Manual page 111

Troubleshoot a problem
Mottled print and dots
Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press
navigate through the settings.
Action
Step 1
a
Check if the printer is using a genuine and supported toner
cartridge.
Note: If the cartridge is not supported, then install a
supported one.
b
Print the document.
Is the print mottled?
Step 2
Check the printer for leaked toner contamination.
Is the printer free of leaked toner?
Step 3
a
Check the status of the imaging unit.
From the control panel, navigate to:
Settings > Reports > Device > Device Statistics
b
From the Supply Information section of the pages printed,
check the status of the imaging unit.
Is the imaging unit near end of life?
Step 4
a
Replace the imaging unit.
b
Print the document.
Is the print mottled?
Yes No
Go to step 2. The problem is
solved.
Go to step 3. Contact your dealer.
Go to step 4. Contact your dealer.
Contact your dealer. The problem is
solved.
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