Semi-rotary drive allows continuous variation of printing length without changes for plate and blanket cylinder
. Fully automatic plate change, auto register and optional quick-change doctor blade chambers also minimize setup times.
Each can rolls against a blanket cylinder
, which transfers an inked pattern from a plate cylinder.
Blanket washes, consisting of varying types of solvents, are employed in removing ink, paper dusts, and other debris from the blanket cylinder
. However, some of these solvents can pose risks to human health and the environment.
On the offset machines, the plate cylinder, blanket cylinder
, impression cylinder, inking cylinders, and dampening cylinders are servo driven.
The insert remains in the press during a size change, since only the actual size parts--the blanket cylinder
and the plate cylinder--are exchanged.
The LS presses use a single independent servo per insert to drive each plate and blanket cylinder
assembly, so a seven-color press needs only seven servo motors.
The towers -- stacked nine-cylinder satellites -- will be equipped with semi-automatic changers for either panorama-size or three-wide plates, KBA RollerTronic automatically adjustable roller locks, automatic ink pumping, and automatic common-impression cylinder, blanket cylinder
and roller washing.
The Advance Publications operation was among the first sites shopping for a new press to express serious interest in 4-by-1, or straight-only, presses -- so-called because, although able to print four pages across a blanket cylinder
, their one-around plate cylinder means producing in collect runs is impossible.