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(Distributed
to designers and print specifiers) I have been responsible
for editing many issues of 'Unfold', a 24 page magazine designed to provide useful
information to designers and print specifiers. Some copy I translate from techno-jargon,
and some pieces I originate. This article was written following interviews with
a couple of printers and a designer/specifier. It is perhaps worth noting that
my knowledge of print is not extensive - unlike that of the commissioning agency,
Marketing Matters. Text of extract shown above To
CTP or not to CTP? There is little doubt that
the future of print lies in computer to plate technology, not least because most
artwork is now produced digitally. Combined with increasing reliability, steadily
improving quality and ever reducing costs, the digital goal of closing the loop
between origination and final output is closer than ever. Although the argument
to adopt CTP technology can readily be made, its practical introduction needs
to be considered very carefully. Besides the capital expense, and the changes
that will be necessary in the workplace, introducing CTP is certainly no substitute
for knowledge or experience, whether of design or print. Printers certainly need
to understand fully the design process and the front-end technology.
See for yourself
Planning for CTP requires
careful thought. Attention needs to be given to a number of things: -
the range of front-end imagesetting systems,
- the
different platesetter options,
- the plethora of choices
of plate materials, including the increasingly popular polymer plates,
- and
of course the all-important subject of proofing.
Choosing
the best combination for a printer's particular needs is a subject that requires
detailed consideration. There are no simple answers. Each printer must be clear
about the applications that will be required, and the run-lengths and quality
needed. It is also essential to examine critically one's own capabilities and
limitations, and plans for the future. For example, if a printer has little or
no experience of computer design they are likely to encounter great difficulties
in trying to introduce the new technology at a single step. Similarly, it makes
sense to introduce systems that can readily take advantage of the experience and
skills of existing employees. An example of a printer
that would be perfectly placed to benefit quickly from CTP technology would be
one with an in-house design studio and its own repro facilities, where installing
CTP would be plugging a logical gap in the printing process. By contrast, there
are stories of conventional printers who have thought that adding on the front-end
technology involved little more than acquiring some equipment - and found themselves
in a very deep and expensive hole. The bottom line
is that you must research the opportunities thoroughly and, most importantly,
to avoid expensive mistakes you must see any system you favour in operation before
making your decision. Where's the proof? As
technology has advanced it has become increasingly common for designers to expect
that the image that looks so good on screen can simply be printed out as it appears.
- whether designing for computer to plate or computer to film. The truth is that
the screen image is often little more than the modern equivalent of a magic marker
visual. Someone has to make sure that the image will print well. The difference
between printers - and the proofing systems they use - may often be defined by
the efforts they make (and the knowledge they have) to ensure a disk is ready
for print before a proof is produced and everyone begins to argue about who's
at fault for any errors. The different options
for proofing are:
- machine proofs,
- digital
proofs,
- and wet-proofs.
Obtaining
accurate proofs is naturally of critical importance to designer and printer alike.
The ideal solution, of course, is to supply machine proofs that have been prepared
on the actual press that will produce the final job. But with CTP this could cost
twice as much as proofing in the conventional film to plate process. Whilst
one must have some form of digital proof to see how the data that looks so perfect
on screen may actually print, the present standard of digital proofs is not always
sufficient to provide clients with enough information to approve work for press.
Keeping entirely digital is the logical way forward, but the results available
on existing machines are variable: some offer better results for some requirements
than for others. Digital proofing is getting better
all the time, ranging from advanced ink-jet technology (such as digital Chromalins)
through to simpler laser copier technology. An important characteristic is a proof
which lays down all four colours separately, allowing a good assessment to be
made before producing the final plate. Wet-proofing
on a flatbed proofing system, from the actual plate to be used, and on the actual
stock to be used, is still one of the best ways to provide a proof that gives
a good representation of the final job. However, machine proofing is becoming
increasingly viable as make-ready time shortens. Whatever
proofing methods are to be used, it is important to understand the possibilities
and limitations of each before committing to any particular CTP system. What
next? Change is likely to be as rapid in CTP technology
as in any other computer related industry. A system is soon to be introduced
which uses new thermal technology, in which the absence of any need for pre- and
post- processing will contribute to all-round costs that are likely to be particularly
low. Whatever happens, CTP can only become quicker
and more economical for all involved. Printers will save time (and money) and
designers will get results that deliver the quality they expect.
Summary
To ensure the successful introduction
of CTP, a printer needs: - to fully understand
the design process and the front-end technology
- to
be clear about the likely applications
- to examine
their own abilities, and plans for the future
- to
build on existing skills
- to see the system in operation
- to
determine the proofing methods to be used
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