Patent ID: 6923436

Claim:
A process for manufacturing sets of printed pages for the preparation of books, comprising the steps of unrolling paper from a feed roller and subsequently cutting a sheet of paper before the sheet is supplied to a printing machine, which then prints bodies of text on the sheet, wherein, in an electronic printing machine having a memory for the content of the bodies of text and an electronic controller for determining a surface area occupied by the bodies of text and parameters defining the bodies of text, printing the bodies of text with a symmetrical distribution with respect to a centre of symmetry of the sheet being printed and likewise symmetrically with respect to two axes of symmetry, which pass through the centre of symmetry and which are parallel with outer edges of the sheet, varying at least one of the outer edges of the bodies of text in accordance with dimensions provided therefor, and subsequently reversing the sheet in order to print bodies of text corresponding to reverse faces of the printed sheet and then folding the printed sheet about both of the axes of symmetry in order to produce a set of pages which are cut at the outer edges in accordance with the dimensions of the printed pages of text, and joining and binding the various sets of pages to form the book.