52 Intermec EasyCoder PD4—User’s Guide
Chapter 8—Maintaining the Printer
Printhead Cleaning
Cleaning the printhead on a regular basis is important for the life of the
printhead and for the printout quality. You should clean the printhead
using cleaning cards or a cotton swab moistened with isopropyl alcohol,
preferably each time you load a new supply of transfer ribbon.
Isopropyl alcohol [(CH
3
)
2
CHOH; CAS 67-63-0] is a highly
flammable, moderately toxic, and mildly irritating sub
-
stance.
1 Open the side door.
2 Remove the media and ribbon.
3 Lift the printhead by pulling out the printhead lever and flipping it
counterclockwise a quarter of a turn.
4 Use a cleaning card or a soft cotton swab moistened with isopropyl
alcohol to dissolve any contamination at line of heat-emitting dots at
the front/bottom edge of the printhead.
5 After approximately 30 seconds, carefully rub off any contamination.
Repeat if necessary.
Never use any hard or sharp tools to peel away stuck labels
or similar. e printhead is delicate and can easily be dam
-
aged.
6 Allow the printhead to dry for a minute or so before loading a new
supply of media and ribbon.
