Should you print barcodes horizontally or vertically?
There are many things to consider when printing barcode labels with variable data. Most of them are practical concerns: Which variable label data like text, graphic elements or barcodes should be on the labels? Which font size do you want? Which parts should be pre-printed, and which information should the printer add as variable data?
Don’t forget to to consider the technical constraints of your labeling system. What is the maximum label width your label printer can handle? Do you need to turn a broad label by 90 degrees so that the narrow side comes out of the printer first? Or can you use a label printer that is wide enough for your purpose without having to rotate the label? Are the ribbon and labels compatible, and does the printing result comply with readability and durability requirements?
All these factors determine the position and orientation of the barcode on the label. Either it leaves the printer by the long edge and looks like a picket fence, or the barcode is printed along the length of the label and looks like a ladder.