(3) P play multiple times. Through the above analysis, we can see that the actual output of a RIP multiple times is actually a multiple output of a digital film. In Agfa's Epson workflow, Print Drive can control multiple output devices at the same time, such as direct platesetters, imagesetters, and digital proofers. Print Drivea-j- to send digital film to these devices at the same time to output plate, film, or digital proofs. This process is a true RIP, multiple output, the biggest advantage of this process is that each output device does not deal with digital film, but directly output, thus ensuring the consistency of the output of all devices.

In summary, due to the continuous maturity of CTP and digital workflow, there are many successful solutions. The author firmly believes that the wonderful work of CTP and digital workflow will surely become more and more beautiful in our printing companies.

2. Digital workflow based on laser imagesetter

The digital workflow based on laser imagesetters is most suitable for the needs of most printing companies in China for technical upgrading, because it can make full use of the existing prepress equipment and integrate the existing production system with the new system to maximize its effectiveness. To make "old trees blossom" and continue to rejuvenate their youth and create benefits, they are highly favored by everyone. The introduction of advanced digital workflows is imperative. Well-known domestic and foreign manufacturers have also adopted this process as the goal of the current work flow development and have launched a successful solution.

The author saw a number of workflows at some printing companies across the country. He believed that Peking University’s well-developed smooth flow workflow is characterized by a set of complete, efficient, stable, reliable, and flexible extensions of digital workflow management. The system integrates the new system closely with the old system, so that the technology can be upgraded with less investment and quick results. It is very suitable for the needs of most of the current companies. Founder Changliu now has more than 30 users in the country. Beijing Xinhua Printing Co., Ltd. has also introduced the process and has been put into production. The operation effect is quite good: the smooth flow configuration workflow is shown in Figure 2.

Figure II

The Founder Flow Workflow Management System is a seamless output system for high-end users. It is based on the latest workflow standards such as PDF and JDF. It is also the world’s first digital work flow that uses the latest JDF file as an electronic work ticket. The JDF file transfer data, using PDF as the internal standard file of the process, integrates each independent software before printing into a system, and fully integrates the prepress output process flow.

As can be seen from the above figure, Founder Chang flow database / account management, PDF format conversion, pre-inspection wrong, hand-back imposition. The functions of black and white laser printing, color digital proofing, film output or CTP output, and even remote proofing are integrated in the unified Chinese operating interface of the system to form a highly integrated, standardized and efficient prepress output process software, completely changing the manual operation mode. In addition, Founder Chang uses its page-independent, editable features, and in conjunction with real-time digital imposition and hand-off functions, it is easy to achieve last minute content modification and page replacement before output. By the majority of users of all ages.

In addition, the author saw some printing plants across the country. Agfa’s erotic process is also good. It also has extensive openness and compatibility. It can fully integrate the existing pre-press printing equipment in the printing factory, and it can integrate the new system with the old system. Together, it can make full use of existing equipment and ensure that the system is simple and reliable. It is characterized by:

From an input point of view, Epson has added a Powerlm Porter module that can receive the intermediate file format of almost all prepress workflows, and can convert it into a standard PDF file or a TIFF IT file and integrate it into the Epson process. management. Print Driver's Open Connect can directly receive 1-bit TIFF files or film dot scan files from other processes and print them in Print Drive.

From an output point of view, Epson has added a Powerlm Porter module, which can directly drive nearly 100 kinds of laser imagesetters and direct plate-making machines from different manufacturers, as well as inkjet ten-point prototypes from manufacturers such as Hewlett-Packard. Equipment plays a bigger role.

In summary, the digital workflow technology based on the imagesetter has matured, and various solutions can be easily used, accurate, and compatible. The author and many users realize that the valuable thing in practice is that:

(1) It can make full use of the original prepress equipment and bring it into full play so that it can achieve less investment and quicker results.

(2) The technology of the enterprise has been upgraded, which has completely solved the cumbersome manual make-up operations in the traditional prepress production process, making the make-up operation fast and accurate.

(3) It will play a good role in paving the way for further CTP and digital workflow.

(4) The color level information is quite stable in the transmission process, and the reproducibility is good, and the production efficiency and product quality are improved. (to be continued)