Thermal Printhead Cleaning
The thermal printhead can be cleaned whenever print quality deteriorates.
1. Open the paper cover.
2. Using a cotton swab soaked in isopropyl alcohol, gently wipe the printhead
several times on its print line and on the surrounding area. See Figure 30.
3. Wipe off any residual alcohol with a dry swab.
If print quality does not improve after cleaning the thermal printhead, call for
service.
Thermal Print Line
DetailView of Thermal Print Head
Figure30. Printhead and Print Line Area (Models TF7 and TM7)
updated March 18, 2002
66 SureMark DBCS User’s Guide