①The label carbon has pinholes (bubbles): it is caused by not evenly coating the printing ink. Will cause the actual effect of the copy to be unclear.
②The label ribbon is wrinkled: Because of the difficulty of the tension control system during the segmentation, it will cause no words to be copied in a small area on the barcode ribbon.
③The label carbon has a blank page: because the light film is not processed properly, it will cause a small part of the blank page.
④The dimensional tolerance of the nominal diameter of the paper core is too large or too small: the barcode ribbon cannot be installed in the label printer or the secret medicine cannot carry the barcode ribbon.
⑤ Too high temperature during copying will cause the barcode ribbon to stick together.