How to Print 4x6 Shipping Labels from SMKlog

I. Steps to Print

1. Prepare printer & driver Ensure KNAON Y41BT driver is installed correctly, power on the printer and load 4×6‑inch (100×150 mm) direct‑thermal label stock.
2. Open SMKlog in your web browser Log‑in to your SMKlog account, purchase and generate your USPS / UPS / FedEx shipping label. SMKlog outputs native 4×6 labels for browser‑based printing.
3. Open browser print dialog Click print on your SMKlog label page.

• Printer: select KNAON Y41BT
• Paper size: choose 4 x 6 in (100 × 150 mm)
• Scale: set to 100% (Actual size) — DO NOT use “Fit to page”

4. Send print job. Confirm label paper is loaded correctly and print your shipping label.

Reference SMKlog official guide: https://smklog.com/lp/print-smklog-label-thermal-printer

II. Troubleshooting

❌ Label shrunk / wrong dimension:

• Scale was not set to 100%. Re‑open print dialog and disable “Fit to page”. Double‑check paper size is 4×6 inch.

❌ Blank or partial printed label:

• Verify you are using direct‑thermal 4×6 label rolls. Confirm label roll is loaded with the coated printable side facing the print head.

❌ Y41BT does not show in printer list:

• Re‑install the latest KNAON Y41BT driver, confirm USB / network connection is active.

If you find any printing compatibility issue between SMKlog and Y41BT, please contact SMKlog support and Knaon support for further investigation.