A 1 About OPI settings, typical workflows, and conflicts
In the following, we give a few examples of how to combine OPI settings and application specific print options when aiming at a particular workflow. Fig.
A-1 illustrates a typical situation when working e.g. with QuarkXPress and making use of all advantages offered by ImageServer:
- Step A: The document in your layout application only contains low-resolution layout images. Thus, you can work rather fast on your Macintosh, because you do not have to handle huge high-resolution image files.
- Step B: Print Layout Images is switched off on your printer queue. This is an HELIOS Admin default setting and lets you print the high-resolution originals.
- Step C: Include Images for TIFF and EPS images is NOT selected in the print dialog of QuarkXPress. Thus, the print job that is sent from your Macintosh computer to the server does not contain image data and is therefore rather small.
- Step D: Replace Layouts is active on your printer queue. This is an HELIOS Admin default setting and induces the OPI server to replace all layout images in the document (or to fill the blanks if NONE of the Include- options is selected).
- Step E: A source profile is tagged to every high-resolution image that will now be included in the print job.
- Step F: An ICC printer profile has been selected for your printer queue. Thus, the OPI server will perform color matching.
- Result: The printout contains your high-resolution images. Each image will be color matched correctly.
Fig. A-1: A typical workflow when using ImageServer
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If you have pre-separated images and want to print them "as is" without applying color matching, you can do that without changing a lot of parameters. The only thing you have to do is set the
Default Printer Profile to
None on your printer queue (Step "F" in Fig.
A-1).
If you want to carry your documents to a third-party company for test printouts, it might be difficult to find portable media that can save all your huge high-resolution image files. In that case, you may provide the company with the document files and the layout images only and then let them use the
Print Layout Images option (Step "B" in
Fig.
A-1). You can even ask them to color match the images on the printouts; for that purpose, however, you have to make sure that all the layouts have a source profile.
Examples of possible
conflicts
The moment you add high-resolution originals to your document (Step "A" in Fig.
A-1), you have to change some settings for printing. You may either use the
Include Images option (Step "C") or switch the
Replace Images option to
All (Step "D"). Replace
All must be selected if you want OPI to apply color matching to all your images. If you do not induce the replacement of your high-resolution originals, they will not be color matched.
The image that is
finally included in the print job has to have a tagged source profile if you want to achieve high-quality color results (Step "E" in Fig.
A-1). If you print layouts (Step "B"), you have to make sure that these layouts have a source profile, too. Layouts are not always tagged with a source profile during layout generation and they do not automatically inherit the profile of the original image. OPI will display a warning if image profiles are missing.
Note: For problems that arise even though you have chosen your OPI settings properly, you may refer to 2.3 "Known limitations".
