Box labels

Label size Add every box of one type

Or type box codes, one per line (A–Z, 0–9 and - only, 3 to 20 characters)

Type for codes that are not in the system yet

How to print on the Zebra GK420t (read once)

Click Print labels. In the print window choose the Zebra printer.
Paper size: the same as the labels in the printer (102 × 152 mm, shown as 4 × 6 in).
Margins: None. Scale: 100% (not "fit to page"). Turn off headers and footers.
Print one label first. Scan it into the "Check a box" screen. It must show the same code.
If the bars look grey or broken: in the Zebra printer preferences raise Darkness a little and lower the Speed, then try again.