Printing Methods Printing presses are variously configured, depending on the print method and on whether the machine is sheet fed or web fed. Light materials and those that are extensible or have poor dimensional stability must be web fed; the material is supplied from a roll and is usually rewound into a roll after it is printed. Web-fed machines typically run faster, and large runs may be better on a web-fed machine. Some types of filling machines must be supplied with packaging material from a roll.Printing Methods Printing presses are variously configured, depending on the print method and on whether the machine is sheet fed or web fed. Light materials and those that are extensible or have poor dimensional stability must be web fed; the material is supplied from a roll and is usually rewound into a roll after it is printed. Web-fed machines typically run faster, and large runs may be better on a web-fed machine. Some types of filling machines must be supplied with packaging material from a roll