Andre,
I am looking at a 4 x 6 print on 4 x 6 paper where the margins are even top and bottom, but different on the left and right from the top and bottom. I got this when I told Qimage I wanted a 4 x 6 print.
Here's what I did to make them all the same.
Go to Page Formatting at the top of Qimage, click Margins, and either set the left and right to a small minus value, and try it. You will have to always click on FIT TO PAGE to refresh the new size.
Depending on whether you are trying for .12 margins all the way around, this will do the job.
If you wanted to match the size of the left and right, keeping the larger margins, just use + amounts in the top and bottom adjustments.
You might have to spend 5 minutes fiddling with the numbers, but it works.
Most of the time, just using fit to page on a 4 x 6 paper size and a fit to page print size will make it even without fiddling.
Try both methods.

If you do like the Margin formatting system, you can save that as a JOB and recall it whenever you need it and wont have to fiddle with the margin sizes again.

Fred

I think you will be shooting yourself in the foot.
If you want borders, and it see, that you do, but you want the same all the way around, one you set it, it will stay.
You can control the borders/margins to the .001 of an inch. You will never achieve that using borderless and minimum or no expansion.
Fred

By using the margin settings in Page Formatting in Qimage you can make the margins as small as you wish.
That is the correct way to do it.
Just insert, negative values, to make the borders /margins, whatever you wish to call them, thinner.
Fred

Hi
This method will work, and is probably the way I would do it, although Fred's will work equally well. Make sure the border is set to B+  (Outside), and set up a template (Layout).
As you say, the problem with both methods is that you have to ensure that the paper feeds in exactly each time as the smallest variation will show up when the borders are so small. The 3800 is not great in this respect, although otherwise its the best printer I've ever used.

Brian

Hi

I have printed a few 4x6 photos with 3mm white borders yesterday.  I used the margins adjustment method that Fred A suggested and did a print preview until the print area was perfectly in the centre.  Then the print came out perfectly centered with the borders even on all four sides. These test prints were made from RAW photos taken straight from my 5D and cropped in Qimage at print time and using the default sharpening and Hybrid SE interpolation and they are perfect.  Thanks guys.

Thanks Terry

I must admit I was a little sceptical about not taking the photos to Photoshop first but after seeing the results I'm very happy.  I must add though that my white balance was spot on straight from the camera as these were studio shoot photos and white balance is the first thing I do before I start shooting.  I love my new workflow!

I'll definitely recommend Qimage to other colleagues and show them the benefits of printing in-house (even though much more costly).  I love to have control over my final product at last!