Investigating Integrated Imposition
New from PrePRESS Solutions is Panther PageImposer software, which assembles individual pages into digital flats after they have been RIPed, solving several problems associated with PostScript-based imposition. Panther Page-
Imposer stores imposition instructions as job files that are completely separate from the content of pages in a publication—watching as each page is individually RIPed—and when all the component pages for a plate are ready, it automatically assembles them for plate production.
Keep an eye on PageImposer and other new imposition tools, as the market evolves and imposition further integrates into digital CTP.
Tech Talk: IRIS on Imposition
A fully digital workflow—from page creation to platemaking—demands a digital imposition proof that doesn't incur the cost or time penalties of exposing analog films to produce traditional bluelines.
Wide-format ink-jet printers are particularly suited to this application. Their image quality is sufficient to verify text and line weight, traps and color breaks. When compared to analog methods, ink-jet offers the added benefits of low-cost consumables, faster throughput and no chemical waste.
An important caveat should be noted: Although the signatures produced on ink-jets are often printed in four colors, they are generally not intended to serve as a final color contract proof. They can, however, be useful in the pressroom as a guide to ink coverage and distribution.
Initially, wide-format ink-jet printers produced only single-sided imposition proofs. Inaccuracies in the feed mechanisms of "off-the-shelf" wide-format printers made them unable to assure proper registration and alignment from the front to the back of the proof.
In order to create a fully imposed flat, users resorted to pasting two sheets back to back. Recently, however, several vendors have refined these mechanisms, making double-sided digital imposition proofing a reality.
Case in point is the IRIS42WIDE imposition proofer, due out this year—watch for it at Graph Expo.