I am possibly missing something painfully obvious, but puzzled. I have set up an image to print 13.08" x 11.02" centred on 17" x 13" roll paper. For some reason it keeps printing the image at the correct size, but on 17" x 18" roll paper.
screen shots attached.

Qimage Ultimate ver 2016.157
Windows 7 64 bit Pro
Intel Core Duo  CPU E8400 @ 3 GHz, 4 GB RAM

Thanks for looking into this, Fred. [yes, I see that I wrote 13.08 by mistake instead of 13.80]
Epson printer driver is not set to enlarge or reduce (see snap); it is definitely set to "Same as Page Size".
Above the print preview in Qimage I see Page: 12.766 x 16.766 in. (720 x 720)

It looks like you're using 17" roll paper and you've set up a page size of 13" x 17": 13 width and 17 height (length).  When you do that, it sets the printable area to 13 inches but it can't change the width of the roll so your 13 inch printable area is going to be part of the 18 inch width.  That's why it's 18 inches on one side.  Your defined length on that roll was 17 inches so you get an 18 inch width (dictated by the roll) and 17 inch height.

I would suggest setting your size to 17 x 13 instead of 13 x 17.  Define the length as 13 inches and the width as 17 and that will cause QU to auto-rotate the print into a landscape orientation: less paper waste because you're now using 17 out of 18 inches of the roll width.  Just be aware that when you set the length smaller than the height in the driver, a "portrait" page will actually LOOK landscape when you're working with it.  Other than that, no down side.

Mike

Problem solved - thanks so much!

and the initial QimageUltimate window with the job...

Thanks, Fred. I should mention that my actual goal is to print on a 17x20 sheet; I set up this job @ 17x19 to compensate for the additional inch that's been creeping in ;-)

I would like to be able to set up custom roll paper sizes using the User Defined dialogue, save them, and print with confidence that the output will match the setup. Usually this has worked, but occasionally jobs print an extra inch. This is one of them.

I notice I haven't checked Optimize Enlargement or Reduce/Enlarge>Fit to Page, and I have set my User Defined page width @ 17.00 inches (not 17.01), then saved it with 17x19 as its name which appears in my driver options. Not sure if that's an issue.

Also, I had been avoiding checking Reduce/Enlarge>Fit to Page in case that might cause the image to resize from what I have set up in the Full Page Editor.

When I do check Reduce/Enlarge>Fit to Page for my 17x20 roll paper size (the size I actually want to print on), I now see "User Defined -> User Defined" showing up in the driver. Page size showing as 16.998x19.998 in upper right. Unfortunately, this still prints an additional inch, i.e. 21" instead of  20".

PS I am using version 2016.158 now.

Thanks - v interesting. I never noticed the sheet cutter feature and haven't tried the Banner Mode (QU has so many features and I know I'm only scratching the surface!). Will see if it makes a difference.

Bill,
I found something that might help.

I checked my 4800 driver, and it is version 6.50, not that old.
I just checked Epson's driver set for the 4800 and there's a new version; 6.62
It is dated April 01, 2016

Please check your version and possibly you could be behind one version.
It certainly smells like a driver problem.

Fred