VARIABLE SIGNATURE INDEXING DEVICE

摘要

A printing press is provided that includes at least one variable cutoff printing unit printing images of at least one cutoff length on a web, at least one cutting cylinder downstream of the at least one variable cutoff printing unit cutting the web into signatures. The printing press also includes a pair of first accelerator nip rolls receiving the web as the web is cut into the signatures and accelerating each of the signatures and at least one motor accelerating the pair of first accelerator nip rolls such that the first accelerator nip rolls have a first surface velocity equal to a velocity of the web as the web is received by the first accelerator nip rolls and the first accelerator nip rolls have a second surface velocity greater than the first surface velocity as the first accelerator nip rolls release each of the signatures. A folder and a method of operating a folder are also provided.