Lexmark 4227-X00 - Manual (Page 66)

Repair Information 4-3
4227-X00
Printhead-to-Platen Gap Electronic Setting
Be sure there is no paper in the printer.
1. Install a ribbon.
2. Hold down FormFeed and power on the printer.
3. Remove the ribbon guide.
4. Measure the printhead to platen gap. The gap specification is:
•
(4227-100) - between .013 inch (.33 mm) and .0165 inch
(.42 mm).
•
(4227-200) - between .011 inch (.275 mm) and .015 inch
(.375 mm).
5. Use the Micro or Micro to change the "Pos" setting. The
Micro button will increase the clearance and the Micro
button will decrease the clearance.
6. Install the ribbon guide.
7. Press Start/Stop to reset the gap to the new “Pos” setting.
8. Remove the ribbon guide and check the setting with a feeler
gauge.
9. Repeat steps 5 through 8 until the gap is within the
specification.
10. Press Store to save the setting in NVRAM.