Figure 10-3 Cleaning The Print Head - Microcom 428LT Operator's Manual

Printer Maintenance
10.4 Print Head Maintenance
If print quality has not improved after using a thermal cleaning card, or if one is not
available, foam or cotton tipped swabs or a clean lint-free cloth dampened with isopropyl
alcohol may be used. Follow the steps below to clean the print head.
1. Follow the steps to remove the Print Head Assembly in Internal Cleaning (See
Section 10.3)
2. With a foam or cotton tipped swab or soft, lint-free cloth dampened with isopropyl
alcohol, clean the thermal elements by gently rubbing the swab down the length of
the print head dot row. Allow for the alcohol to evaporate, then repeat if necessary
(See Figure 10-3).
3. Reinstall media and run labels to check print quality.
4. If poor print quality persists, print head or other parts may be damaged.
Thermal Cleaning
Pen shown here
CAUTION: Isopropyl Alcohol should be used to clean the drive
roller. The use of other cleaning solvents or materials is not
recommended and may degrade the performance of the drive
roller.
10-4

Figure 10-3 Cleaning the Print Head

428LT Operator's Manual- 880040-0200
Chapter 10
Gently clean the
Print Head dot row
with a foam or
cotton-tipped swab,
Thermal cleaning
pen, pre-moistened
cleaning swab, or
lint-free rag
moistened with
Isopropyl alcohol.