In InfoPrint 4100 Models MS1, HS2, HS3, MD1/2, HD3/4, HD5/6, TS1, TS2, TD1/2, and TD3/4 Advanced Function Printers publications, the terms forms and paper have specific meanings. Forms refers to the media on which the printer can print. Forms can be blank paper, preprinted paper, adhesive labels, cards, or any other printable material. Paper refers to a specific fiber-based material used to make forms.

Duplex printing systems operating in duplex mode, such as the InfoPrint 4100 Models MD1/2, HD3/4, HD5/6, TD1/2, and TD3/4, have two printers commonly referred to in this publication as Printer 1 and Printer 2. Printer 1 is the first printer to print on the forms as they enter. Printer 1 does not have a touchscreen. Printer 2 prints on the other side of the forms, which have been turned over by the Buffer/Flipper Unit. Printer 2 has a touchscreen, as well as a keyboard and mouse.

For definitions of other terms, see the Glossary. These comprehensive reference tools contain not only terms used in this publication, but also terms, abbreviations, and acronyms from other publications in the InfoPrint 4100 Advanced Function Printers Library.