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Maintenance
Cleaning
1/13/2016 ZD420 User’s Guide 212485-001 Rev. A
3. Spray the Upper Web (Gap) Array Sensor under the Ribbon Drive Transport and the Ribbon
Out Sensor on the underside of the Printhead Actuator Arm with a can of compressed air. If
necessary, use an alcohol moistened swab to break it up. Use a dry swab to remove any
residue that may be left from the first cleaning.
Ribbon Out Sensor
Upper Web (Gap)
Array
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