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Maintenance
Cleaning
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
Sensor Cleaning
Dust can accumulate on the media sensors. Do not use an air compressor to remove dust.
Compressors add moisture, fine grit, and lubricant which can contaminate your printer.
1. Pull the two (2) Release Arms out to release the Ribbon Drive Transport. The arms are
located on the left and right sides of the printer. The Ribbon Drive Transport and Printhead
Actuator Arm will now be loose.
2. Swing the Printhead Actuator Arm up until it touches the printer’s top cover. Hold the
Printhead Actuator Arm in this position for access to the area below the printhead, see the
next graphic.
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