Different types of docket printers use different types of paper rolls. You must use the correct style of paper for your printer. First, you need to determine what type of printer you have:
dot matrix – needs an inked ribbon to print images. This type of printer uses plain paper rolls – either bond (1 ply) or carbonless (2 or 3 ply), depending upon your requirements.
thermal – uses heat to activate chemicals impregnated in the paper to print images and does not use a ribbon. This type of printer uses thermal paper rolls.
*Hint: If you are unsure of the type of paper that you need, scratch a little of the existing roll with your fingernail. If it marks clearly, that is thermal paper.