Microcom 322M - Manual (Page 97)

Chapter 10 Printer Maintenance
322M Operator’s Manual
93
10.4 Print head Maintenance
If print quality has not improved after cleaning (using a thermal cleaning card, or if one is not
available) foam or cotton tipped swabs dampened in isopropyl alcohol may be used. Refer
to Figures 20 and 23 and follow the steps below for the proper cleaning procedure.
1. Remove any installed media.
2. Turn the printer power OFF.
3. Using the two Head Release Levers (Figure 20), unlatch and raise the print head.
4. With a foam or cotton tipped swab dampened in isopropyl alcohol, clean the thermal
elements by gently rubbing the swab down the length of the print head. Allow for the
alcohol to evaporate then repeat if necessary. See Figure 23.
5. The Drive Roller, Peel Edge, and other basic internal cleaning may also be
performed at this time. See the appropriate sections for more information.
6. Latch the print head completely and reinstall the media.
7. Turn the power to the printer ON.
Figure 23 Print head Thermal Elements
CAUTION: When performing maintenance inside the printer, always
make sure that the print head is latched completely before installing the
top cover. Failure to do so may result in damage to the print head.