Zebra G-Series Desktop Barcode PrintersBy admin / 3 August 2008 GK420d Quick Specs Print Method: Direct Thermal Resolution: 203 dpi (8 dots/mm) Width: 4.09″ (104 mm) Print Speed: 5″ (127 mm)/sec GK420t Quick Specs Print Method: Direct Thermal / Thermal Transfer Resolution: 203 dpi (8 dots/mm) Width: 4.09″ (104 mm) Print Speed: 5″ (127 mm)/sec GX420d Quick Specs Print Method: Direct Thermal Resolution: 203 dpi (8 dots/mm) Width: 4.09″ (104 mm) Print Speed: 6″ (152 mm)/sec GX420t Quick Specs Print Method: Direct Thermal / Thermal Transfer Resolution: 203 dpi (8 dots/mm) Width: 4.09″ (104 mm) Print Speed: 6″ (152 mm)/sec GX430t Quick Specs Print Method: Direct Thermal / Thermal Transfer Resolution: 300 dpi (12 dots/mm) Width: 4.09″ (104 mm) Print Speed: 4″ (102 mm)/sec