Above videos shows Lollipops were printed by the food printer grouply, this kind of Lollipops are transparent color, for checking their printing color, it need to find a white paper as its backgroup as there is no white ink printing as its backgroup.
These lollipops were printed with edible ink, they are printed directly, no need transfer paper for them, if need to use transfer paper, you can print on the transfer paper first, and then stick them onto the lollipops.
Use edible ink, the food pritner machine can print on food, such as cake,chocolate,macarons,marshmallow,lollipop,cookies,bread,biscuit and more