| 摘要 |
Sheets of paper or other suitable material are formed into pairs (21, 22) connected together along one edge (23) by folding or by means of adhesive, and such double sheets (20) are formed into stacks (10) for use in reprographic operations by a method in which a reprographic operation is performed simultaneously or successively on the two exposed faces of the pairs of sheets whilst they remain in face-to-face relation, and the two sheets of each pair are then separated into single sheets after completion of the reprographic operations. In this way, it is possible to utilise material of a weight or stiffness which could not otherwise be handled by conventional reprographic apparatus. The inwardly and outwardly facing surfaces of each item may have different surface properties. <IMAGE> |
