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Maintenance
Replacing the Printhead
If you need to replace the printhead, read the procedure and review the removal and
installation steps before actually replacing the printhead.
ESD Caution • Prepare your work area by protecting against static discharge. Your work
area must be static-safe and include a properly grounded conductive cushioned mat to
hold the printer and a conductive wrist strap for yourself.
Caution • Unplug the printer from the power supply and allow the printer to cool to prevent
injuries or damage to printer circuitry.
Use one of the following model specific procedures to replace the printhead.
• ZD620 and ZD420 Direct Thermal
• ZD620 and ZD420 Thermal Transfer Ribbon Roll
• ZD420 Thermal Transfer Ribbon Cartridge
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