Zebra QLn420 4" Mobile Thermal Label Printer - Tested, Factory Reset + Battery

Ex-business Zebra QLn420 mobile thermal label printer, individually tested and factory reset. Photos are of the actual unit you will receive (stock no. ZB-09).

Condition - Very Good (3.9 / 4)

Case / housing	Very good - light signs of use only (4/4)
Port covers	Port covers present, light wear (3/4)
Print quality	Crisp, even print (4/4)
Battery	Very good - 83% of original capacity (4164/5000 mAh), 2 charge cycles (4/4)

Testing

• Tested 05/10/2026: restored to Zebra factory defaults and test label printed - result: PASS
• Firmware: V68.20.10Z
• Serial number: XXQVJ184100466
• Battery charge at test: 100% (8.19 V)

Specifications

Brand	Zebra
Model	QLn420
Type	Mobile / portable label printer
Printing technology	Direct thermal (no ribbon needed)
Resolution	203 dpi
Maximum print width	4 in (104 mm)
Printer languages	ZPL, CPCL
Connectivity	USB (tested). Bluetooth. No WI-FI.
Colour	Monochrome
Serial number	XXQVJ184100466

What's included

Printer and battery, as pictured

Please note

• The printer has been reset to factory defaults, so any Bluetooth settings have been cleared and will need setting up for your network or app.
• Only the items listed above are included.