Seoul, Korea · Since 1995

Barcode printers, scanners and service in Korea

Wooju OA supplies, installs and repairs barcode equipment for logistics, manufacturing and retail sites in Korea, from label printers to mobile computers.

Products info@woojuoa.co.kr

Founded: 1995, Seoul
Zebra: Business Partner
Brands: Bixolon, Zebra, Honeywell, TSC
Service: Supply, installation, repair

Products

Brands we supply and service

Bixolon · Zebra · Honeywell · TSC · Godex · i.safe MOBILE · PointMobile · M3 Mobile

Guides

All guides

Product photo of the Zebra TC22, Honeywell CT32, and M3 Mobile SL20 industrial PDAs

GuidesOct 2, 2026

When to replace an industrial PDA battery: judging by the status menu and charging LED

Time PDA battery replacement by charging LED and battery status: TC22 Battery Manager, charging errors, contact cleaning, and CT32 and SL20 hot swap.

Zebra GK420t, TSC TE210, and Zebra ZT411 label printers

GuidesOct 2, 2026

Label printer self-check before service: printing a configuration label and reading the status lights

Before sending a label printer for service, read the status light and print a configuration label: Zebra and TSC steps, light signals, and what to prepare.

A Zebra ZD421 desktop printer and a Zebra GK420t printer with a label coming out

GuidesOct 2, 2026

When to replace a label printer platen roller: slipping and sticking symptoms, and how to remove and clean it

Replace the platen roller by symptom, not schedule: slipping or sticking after cleaning, ZD421/GK420t removal, roller colors, and linerless roller care.