Setup: Loading Thermal Ribbon
Guide on how to set up the Zebra ZD421 Label Printer
With the printer open, place an empty ribbon core on printer’s take-up spindles.
Push the right side of the empty core onto the spring-loaded spindle (right side), aligning the core with the center of the left-side spindle’s hub. Then rotate the core until the notches align and lock.
Place a new ribbon roll on printer’s lower ribbon supply spindle. Push it onto the right spindle and lock the left side on to the left supply spindle.
Attach the ribbon to the take-up core. Use the adhesive strip on new rolls; otherwise, use a thin strip of tape. Align the ribbon so that it will be taken straight onto the core.
Turn the ribbon take-up hub with the top moving toward rear to remove slack from the ribbon. Rotate the hub to finish aligning the take-up ribbon position to the ribbon supply roll. The ribbon leader should be completely covered by the ribbon.
Verify that media is loaded correctly and is ready for printing, then close the printer cover.
If printer power is ON, press FEED to advance the media a minimum of 20 cm (8 in.) to straighten the ribbon and remove any slack and ribbon wrinkle and align the ribbon on the spindles.
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