Hi WimG
First of all I'll clarify QU terminology.
A "margin" is a page margin, the non-printable area around the edge of a page.
A BORDER is a print feature, around a printed image. Up to 2 even borders can be specified on the Print tab.
Any number of Even or Uneven borders (relevant to your request) can be specified using the Mat feature.

From the pixel size you gave, the aspect ratio is 4.15:1. Therefore the calculated length is 1578mm. However, as Fred has said you only need to specify the Short dimension using Custom size on the Print tab - Crop scissors OFF. See screen shot below of my sample. Add the image to the queue.
To add your 20mm (2cm) borders top & bottom, either in Live view or Page preview, select the image and right click to select Photo Mats in the Customise Prints section of the list.
Specify the border size with Grow Mat dotted. See second screen shot below. If you click the red V at the bottom right of the Mats window, you will see an instruction video.
https://www.youtube.com/watch?v=Rl8Q4fP7rYM&feature=youtu.be&hd=1
The 3rd screen shot shows the result on my pano' image, in grey so you can see it. For a white border, you'll need to add Cut Marks (properties Tab) to see where to cut out from the roll.
I hope that gets you going.
Terry

What Fred and others need is a screen shot of your Properties tab. Also click the Properties button and take screen shots of the Driver settings. See below and Fred's screen shots for Canon in Reply #1 above
Terry

Hi Lawrence
I showed you Windows Q1 which of course has Windows a Folder format with the headers and features of Windows Explorer. MAC, is no doubt, different so Q1 has to use its folder format and features.
Maybe Mike will comment on this.
Terry

Where are you saving your print settings? you should be saving as a Print Set Up from the Printer & Settings Tab. See attached scree shot from Q1. Ultimate is exactly the same.
If yours is different, is it because you are using the Apple version -  I don't know? Mine is Windows.
Terry

Hi Lawrence,
It sounds like you have date order set. Click on the file name header to sort in alphabetical order.
If that is still not suitable, rename the files (right click on the name) to get it how you like it. Keep the file name format consistent and all should be ok.
Terry
PS. This is what I do in Qimage Ultimate, I assume Qimage One is the same.

8.5x5.5 is too big for 8.5 x 11 paper - you need to take account of the printer margins that make the printable area smaller and QU is telling you that by asking you to make the print size smaller.
See attached screen shot (Epson R2000 printer) and note the difference in size from the page 8.5x11 to printable area of 8.266 x 10.766.
The print size is set to Fit to Page.
Hope that helps.
Terry

Dave,
You can why read here too.
http://www.ddisoftware.com/qimage-u/features.htm
As well as printing, raw processing and editing is very good. At least 90% of my prints are direct from the raw image. I occasionally do a bit of cloning or perspective correction in other software (not Adobe!).
QU is King of photographic printing (and Queen if you like).
Terry

Hi young Fred
I regularly do this to create a set of downsized images for my online Flickr account (click the round blue icon under my name to the left of this post). I use Create Email copies where I can set the resolution and crop to different aspect ratios using varying print sizes in the queue.
You can downsize using the Convert feature and putting a dot in the "Add Filter" and then set a resolution there.
I find this method best for web copies:-
Add the images to the queue and set the print size according to the crop required. If they've been cropped in the editor, then the size does not matter but the crop scissors must be off.
Right click on the page live view and select "Create E-mail/Web Size Copies". Set the resolution, and for general viewing by others or on the web, tick "convert to sRGB"
See attached screen shot.
The third method available in QU is to Print to File. I use this when I want to make an image for club competition projection and I want an image to have borders - which is a print feature.
Qimage Ultimate is so versatile  
Terry

Re. Black level. I would think most users do use auto black level, I do.
Have fun using QU Raw Refine - it's an unusual  interface, drawing rectangles etc. but, I think, better than a load of sliders with strange names.
ODR takes a bit of practice but there's a helpful teaching video here https://www.youtube.com/watch?v=y37FmX0u3yg&feature=youtu.be. Set to 1080p HD. You can access it from QU Refine, click the red V.

Terry

Hi CH
Possibly. The 2 things I have fine tuned is the sharpening (reduced radius) and Noise reduction (increased a little).
You need to check a number of images with different subjects and lighting conditions to see if anything needs changing. If they do, a little experimentation will be required. Also, don't forget to save the settings for the particular camera.
Terry

Hi Mel,
That's always been a problem for me. I check under a strong light with a small but strong magnifying glass.
However, Yellow never seems too be a problem so I don't often do a detailed check.
Terry

This sounds like SPAM
Terry

Thanks Mike. I'll give it a go later.
Terry

Very helpful Video Fred  However ....
One for Mike probably ...
I've checked out the new Job Recall feature where the images are no longer in their original location, it works well. I probably won't use it a great deal but it make life easier as I do move the previous year's images to different hard drives for archiving.
I wondered how it would work if the job had images archived on removable media like a DVD. I have a significant number of images stored on DVD's, most of which have been included in the QU Database.
If I do a normal database search using part of a folder name (mine have the date and subject) and the use DVD drive letter as the folder, a result soon appears giving me the CD name etc.
As a test I created a simple print to file job from an old image in a folder on a DVD.
If I recalled the job with the DVD in the drive, it was found ok. If the DVD was not in the drive, it could not be found. Not good as I wouldn't normally know which DVD to load.
The top level folder (and sub folders?) appear to be recorded in the database.
Is it possible that a the search from job data could include information so that the correct DVD could be located?
Maybe I'm not understanding something?
Terry

Hi Steve,
What you are seeing when you use send to is the thumbnail in it's folder.
To change the Send too behavior with QU use the Edit menu-Preferences-When Images are Dropped into QU - choose Add to Queue.
See attached screen shot and note where the dot is.
I'm surprised you are getting two different behaviors with Send to and Dropping the image onto the page.
Try what I suggest and let us know how you get on.

Terry