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Maintenance
Cleaning
5/22/2012 GC420t™ User Guide P1052686-001
Sensor Cleaning
Dust can accumulate on the media sensors.
1. Gently brush or blow dust away with a can of compressed air. Do not use an air
compressor - oil (from the pump) and dirty water will contaminate the printer and
printhead. If necessary, use a dry swab to brush away dust. If adhesives or other
contaminates remain, use an alcohol moistened swab to break it up.
2. Use a dry swab to remove any residue that may be left from the first cleaning.
3. Repeat steps 1 and 2 as required until all residue and streaks are removed from the sensor.
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Black-Line
Sensor
Ribbon Trailer
Sensor
Label Taken
Sensor
Gap
Sensor