RIP's way forward - prepress digital workflow
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The era of digitalization and networking has come to the fore, and the publishing and printing field has ushered in new challenges and opportunities. With the maturity of CTP technology products, the momentum of large-format CTFs has become stronger, and digital proofing and digital imposition folding applications have accelerated their popularity. Fast printing, on-demand printing is on the rise, remote proofing/output, publishing and printing e-commerce are coming out??
With the development of the printing industry, the RIP function in the traditional sense can no longer meet the growing requirements of the printing industry. RIP has faded out of the printing stage and the digital process is popular.
First, RIP and prepress digital workflows are defined separately
RIP full name raster image processor, RIP's main role is to interpret various images, graphics and text in the computer production layout into dot matrix information that can be recorded by printers or imagesetters, and then control printers or imagesetters to record image dot matrix information. On paper or on film.
RIP is usually divided into hardware RIP and software RIP, and there are also soft and hard RIP. Hardware RIP is actually a dedicated computer dedicated to interpreting page information. Software RIP is the calculation of the page by software, and the recorded record information is transmitted to the imagesetter or other output device through a specific adapter card. At present, the computing speed of computers has been significantly improved, and the interpretation algorithms and screening algorithms of RIP have been continuously improved, so the interpretation speed of software RIP exceeds the hardware RIP. In addition, software RIP upgrade is easy, and it can be improved with the increase of computer operation speed. Therefore, the RIP that is still used in the market today is mostly software RIP.
The prepress digital workflow is the transformation of RIP and the perfection of its functions. In a sense, RIP is an early prototype of digital workflow. Nowadays, the digital workflow has covered the work of RIP. RIP is only one part of the process. The process uses a different technology and direction to provide more RIP than RIP. More features. Before the emergence of the digital workflow, RIP, digital proofing, color management, and layout are all independent modules. After the digital workflow appears, they are organically combined into one. The above functional modules are effectively managed and output. The equipment is uniformly deployed for load balancing. At the same time, the current workflow application work job subpoena develops a detailed work operation plan, manages and monitors the process and operation of the process, and realizes information sharing through the database technology and management system (MIS or ERP). The digital workflow uses the pre-press workflow of the JDF standard to form the overall digital process of the printing company through pre-press, printing and post-printing through CIP3/CIP4 files.
The digitization process is divided into several types according to the way of working. At present, PDF-based digital workflow is popular in China, not only compatible with imagesetters, direct platesetters, EPSON, HP full range of digital proofing equipment, but also can be exported to Xerox, HP Indigo, etc. Equipment; After Drupa 2004, around the JDF theme, many vendors also launched JDF-based digital workflows in a timely manner; Peking Founder (the only company in China that joined the CIP4 organization) also launched a JDF-based digital process— Founder Flow (ElecRoc) workflow management system. Harlequin and Adobe, the major foreign RIP providers, are also major PDF process providers.
Second, the prepress digital process introduction
The pre-press application of the digital PDF process, in addition to the normal file interpretation (Normalizer), folding handwriting, digital blue sample, digital contract proofing, CTF/CTP output, has added a sophisticated document inspection system (pre-check and Screen soft proofing), powerful trapping (Trapping) and spot color conversion library, complete file saving backup system, and good connection with printing and printing through CIP3/CIP4 files. These are all needed for print production RIP can't solve things completely.
Different categories of digital processes:
1. Unstructured combination RIP+ folding hands + digital proofing
(Non-strict process) can automatically rasterize files (such as Founder Century RIP+ Founder + Party Founder, Harlequin RIP+PrePs+ Digital Proof)
2. ROOM-based workflow
Inheritance scheme based on rasterized CT and LW (such as CREO's Brisque)
3. Simple PDF solution
Create a "Print Ready" PDF, RIP process is hidden or performed by a separate RIP (such as the HDB Print Ready / Metadimentions, Creo's Prinergy EVO, etc.)
4. JDF-based workflow
Focus on large customers. The database is driven by networked processing.
JDF management scheme based techniques [such as the smooth flow of Founder (ElecRoc), Apogee X Delano, HDB Prinect, Creo Prinergy (full) and the like. 〕