User's Manual

QL 420 User’s Guide 33
FIGURE 16: CLEANING THE QL 420
Printhead
Elements
Peeler Bar Rollers
Peeler Bar
Platen surface
Avoid using alcohol
on linerless platen
surface
Tear Bar
Label Presence
Sensor
Bar Sensor
Gap Sensor
Bearing Points
Linerless Platens only
Edge Guides, Inner
surfaces on both
sides.
Units with linerless
platens only.
Media Roller
Media Roller
Avoid using
alcohol on
linerless
media roller
surfaces
Bearing Points
Linerless Platens only