Lexmark MS621dn

Mismatched supplies error service check
Action Yes No
Step 1
Check whether the supplies installed are genuine.
Are the supplies genuine and supported Lexmark units?
Go to step 3. Go to step 2.
Step 2
Install genuine and supported Lexmark units.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Check the following:
• Check if the supplies have matching types. Do not install MICR
supplies together with non‑MICR supplies.
• Check if the supply is supported by the region.
• Check if the supply is supported by the specific printer model.
Is the aected supply the correct or matching unit?
Contact the next
level of support.
Go to step 4.
Step 4
Replace the aected supply with the correct unit.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Maintenance kit low service check
Action Yes No
Step 1
Print a test page using paper from a newly opened package, and
then check the result.
Are there print quality defects on the test page?
Go to step 2. Go to step 3.
Step 2
Identify, and then resolve the print quality defect. See
“Fixing print
quality issues” on page 25.
Note: If a supply was replaced, then make sure that the
maintenance kit count is reset.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Check if the printer has feed problems by doing a feed test.
Does the printer have a problem feeding during the test?
Go to step 4. Go to step 5.
4600-830, -835, -895
Diagnostics and troubleshooting
106