Because this printer supports borderless printing, if set correctly, it should have no white edges. ...
However, the maximum paper width cannot exceed A4 width. See if it has the function of customizing paper size. If so, you can set the paper to match the actual size ... and select the borderless adaptive page size option when printing. ...
At the same time, the paper should be placed correctly ... If it is still not easy to set, then you should make the custom paper size slightly larger than the actual paper ... It is estimated that as long as the width does not exceed A4 width (the main limitation of the printer is the printing width).