Lexmark MS312 Service Manual page 42

Actions
Step 1
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the printer is using a third‑party cartridge, then refer the
users to their cartridge supplier.
Is the printer using a genuine and supported toner cartridge?
Step 2
Install a genuine and supported toner cartridge.
Does the problem remain?
Step 3
a
Check and remove any packing material left on the imaging
unit.
b
Firmly shake the imaging unit to redistribute the toner, and then
reinstall it.
Does the problem remain?
Step 4
Check the imaging unit for damage and proper installation, and
replace if necessary.
Does the problem remain?
Diagnostics and troubleshooting
42
Yes No
Go to step 3. Go to step 2.
Go to step 3. The problem is
solved.
Go to step 4. The problem is
solved.
Go to step 5. The problem is
solved.
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