Binding machine a cassette machine and booklet binding method

A booklet binding machine where each booklet includes a cover that has a front side, a rear side a spine disposed between said front and rear sides and a number of sheets such as sheets of paper enclosed in the cover and glued to the spine thereof, wherein the machine includes

• a cassette receiving element which is adapted to receive a cassette pack comprising a cassette and a bundle of booklet covers disposed in the cassette where each booklet cover is provided with fold lines and an activatable adhesive;
• an infeed mechanism adapted to feed booklet covers from the cassette to the machine one at a time;
• a combining unit adapted to combine a plurality of sheets with an infeed booklet cover;
• and an activating unit for activating the adhesive and therewith fastening the sheets to the booklet cover;
• characterized in that the cassette receiving element is adapted to receive a cassette pack in which the booklet covers are disposed in a bundle of non-folded state in the cassette;
• and in that the machine also includes a folding device for folding the booklet covers along two of said fold lines.