Mark Vruno

How can we waste less time remaking proofs?
June 26, 2007

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Question: We waste a lot of time remaking proofs. How can we reduce repeated proofing for the same job?

First, you have to start measuring the color bar you output on every proof with process-control software. These programs analyze historic data with a built-in trending module or can export data into an application like Microsoft Excel. By doing this over a period of time (a week at minimum, but a month would be better), you’ll be able to determine the normal variation of your proofing process.

Not all systems are alike
Not every proofing system has the same normal variation, nor do any two similar proofing systems have identical variation. Once you know what the normal variation is, you can begin to set reasonable and achievable tolerance levels for your proofing system.

Low tolerance for tolerance?
Next, you may not care for the tolerance levels that the previous step of this process is directing you to set. That’s O.K. You now have meaningful historical data that will allow you to make process improvements. Instead of someone saying, “I don’t like that inkjet proofing paper vendor XYZ is providing,” you can dig into the database and see that, in fact, the inkjet proofing paper vendor XYZ is providing has a delta E variation beyond what you are willing to accept over a month’s time. The key is that you will be making process changes based on objective fact—not subjective opinions.

ROI comes quickly
The process changes you make will continue to improve the ongoing process, resulting in fewer and fewer defective proofs. Each defective proof you are no longer making has a cost savings associated with it. When you add up all these little cost savings, you can quickly calculate the return on investment (ROI) of your hard-copy color proofing process control software solution. In my experience, the entire cost of the system is recovered in less than one month in many cases.

Posted by Mark Vruno on June 26, 2007 | Comments (0)