I believe the issue has to do with the 'boxes' in the PDF files. So you can have art boxes, trim boxes, crop boxes, etc. When you do imposition you select which 'box' to use. However, if a box is 'missing' or not defined then Core will go to the next larger box until it finds one to use. So for example, you might want to use the TRIM BOX for your imposition and not the crop box. Make sure all your files have a trim box, if needed there are ways to set the trim box. Usually the mirror bleed will build from the trim box. So try using the trim box, then set the gutters to be the .125. If this does not work for you then please gather a few of the files that work wrong and .zip them and attach to a post here in the forum so we can review them. You can also export (FreeFlow Core exchange) the workflow and include in .zip file. This way we can validate using your files to get a resolution.
I have setup the the Imposition node as you described. When using 8.5X11 inch pages, I do not see a problem -- see below. Is there some size parameter value that causes the problem (e.g., crop box = X, Y)? Something else?
Ok I'll just try to be as detailed as possible then. So this is happening across the board with all my workflows of all different sizes but lets take a single sided flyer for example. The key to the workflow is adding bleeds to flyers that have none. We have trouble getting our customers to add bleeds so thats what we are mostly using the software for. In my flow I have a basic preflight that looks for any files that are under 8.75" w x 11.25"h (bleed size). From there I have a route everything that is that size goes straight to the imposition, anything not that size goes to the optimaztion that I have set to add .125 mirror bleed. The bleed is added fine and then it goes to the impostion where it seems the trouble happens. Here are my imposition settings for the single sided flyer example:
So here is the issue. For some of the jobs the flyers come out fine 2 up on the front and 2up on the back they are butted together and have a .125 gutter inbetween the columns so you have cut marks like this at the bleed _ | | _ a cut mark on the left two in the center .125" apart and one on the right which work perfect for the cutter settings in the print shop. Yet other files you run through will have cut marks like this
_ |_ _| _ it adds those extra inbtween throwing off my column gutters. Or sometimes like this _ | _ with only one cut mark and no gutter at all. The only thing that seems to fix this is if I open the pdf in Adobe Illustrator and save it then run it though that seems to fix it but if I have to do that everytime it defeats the purpose of the software.
Dave - Sorry for such a long post and the crued drawings but I hope this helps make the issue clear because I really need to get this fixed we are trying to get a hands off approach to our printing. Thank you so much for your help.
Unfortunately Xerox does not allow Forum users with non-Xerox e-mails to upload photos -- security concerns. You can attach a link to a website for image sharing such as imgur.
It almost seem like a file issue so most files will go through fine but some will change how the crop marks are completly. How do I attach photos to this post so I can give you some clear examples?
Can you provide me with an example of the problem? For example, the press sheet size, page size, layout, gutter and trim mark parameters. Thanks.
I do have the cell clustering on because that seems to be the only way I can get an accurate gutter inbetween rows. So I want a .125 gutter between each row but when I take the cell clustering off I get the extra cut mark on the inside of each row making my gutter way to big.
Does anyone know why the gutters would dissappear in a flow and get rid of the gap with the crop marks making it a single line instead of the double. I want a .25 margin between my columns and sometimes it's there and others it's just a single line down the middle.