User Manual

Table Of Contents
Maintenance
252
Upper Half of ZD621/ZD421 Direct Thermal Printers
1. Spray the Upper Web (Gap) Array Sensor below the printhead with a can of compressed air. If
necessary, use an alcohol moistened swab to break up adhesive or other non-dust contaminants. Use
a dry swab to remove any residue that may be left from the first cleaning.
Upper Half of ZD621/ZD421 Thermal Transfer Printers
1. Spray the Upper Web (Gap) Array Sensor below the printhead with a can of compressed air. Complete
sensor cleaning (very rare) requires a service technician
Spray Sensor Up
Here