vretti 420B how to adjust the size of the label on the Mac laptop driver setting?

Are you still troubled by print offsets? Here will teach you how to set the paper size. But before setting the size, please confirm whether you have installed the printer driver on the laptop. If you don't know how to install it, please click the link below to download it. https://www.vretti.cn/pages/manuals-drivers After installing the driver, you can copy the link below to open it in the Safari browser and then set the paper. http://127.0.0.1:631/admin If you have any questions, welcome to leave comments on this video.