form roller

form roller

[′fȯrm ‚rōl·ər]
(graphic arts)
An inking or dampening roller which is in direct contact with the plate on a printing press.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?
References in periodicals archive ?
With a 4-cylinder design (anilox, form roller, plate and blanket), the Aniflo eliminates the need for operator adjustments and provides a consistent and stable printing process.
But, in general, he was satisfied with "a very predictable result" from his KBA Anilox Colora's three-roller system with full-diameter form roller. Waste is down, maintenance varies, and anilox roll wear is under study.
Ink is applied directly to a large form roller by a scoop roller that turns through the ink trough.
To avoid dampening unit ghosting, dampening form roller circumference is half that of the plate cylinder (page deep).
The study included consideration of the effects of a plate cylinder-sized form roller and ink refreshing on the anilox.)
MetroColor comes with two form roller single-piston injector inking (optional digital inking), individual couple silencing, tool-less plate lock-ups, spiral-brush direct-to-plate dampening (spray bar available), automatic webbing through the topmost module, automatic margin systems for four-high stacks (optional automatic register system), automatic forward-reverse inching and a range of cutoffs.
The press contains inking units with three form rollers for high-quality printing and minimal start-up waste.
"Now with offset, you have an ink pan, ink keys, a ductor roller, several ink transfer rollers, water balance and application rollers, form rollers (those that finally ink the plate), a plate roller, and a blanket roller, it is obvious that the operator has to control many more parameters compared with flexo.