1.2 - Download and save the driver file 2054A-mac-install.pkg on your Mac.

1.3 - Press and hold the 'Control' key on computer's keyboard (do NOT release) and mouse click on the pkg file, the release the 'Control' key, then select 'open', then click 'open' button to install the driver. (Otherwise,'Unidentified Developer' warning prevents further installation). Still have issue to run the installer? Here is another way to run the installer.

1.4 - Verify if 'Arkscan 2054A' is installed under Printer & Scanner. To print sample shipping label by choosing Page Size to '4x6', and Scale to 'Fit to printable area' for Chrome; it needs to manually adjust  the Scale to fit on Safari (for this particular sample label is 48%). *Highly suggest to test print the sample label before print your label from your postage label websites.

1.5 - To print your real label, make sure to choose 4x6" label layout format FIRST on the postage label website, then pay a label to generate the correct 4x6" layout printer to print. *Reprint previous created 8.5x11" layout label won't work.

*** Highly suggest to print this sample shipping label to test if the printer works before moving forward to the next step.