Hi,
The answer is YES but you would normally carry on and print with Qimage. Image editing (sharpening, colour etc.) is separate functionality.
Qimage is a fully colour managed application and it helps to have the colour space embedded in the image - which is the normal way of communicating colour between and within applications. If you are using PS to prepare your images then do make sure the colour space is embedded in the image. Also, NEVER resize in PS, let QU do that automatically, it is far superior to any other application.that's why prints from QU are always better.
You mentioned sharpening, it should be pointed out that QU does smart print sharpening according to the image and print parameters; another special feature to ensure top quality prints.
The techy stuff is here:
http://www.ddisoftware.com/qimage-u/tech-prt.htm
http://www.ddisoftware.com/qimage-u/tech-fus.htm
http://www.ddisoftware.com/qimage-u/tech-fus.htm
I've mentioned this latter information about Deep Focus Sharpening because that is used for the print smart sharpening too.
Re.
Not sure what you mean by this. If it means producing an image to print, the answer is also yes but if you own a printer, you'd be crazy not to use QU to do the printing too.

I hope that is some help for you. Come back & ask some more at any time.
Terry

Thank You Terry and Mike. Thanks for the responses. These are quite helpful. I'll experiment with different QU options to get a good feel of it. 

Color Space:  My default is  ProPhoto RGB and i am sure information is embedded in the psd / tiffs.  Is there a way to validate this in PS.

Print sharpening: As i understand you are recommending I bring the image in QU without any output sharpening in PS and let that be handled via QU algorithms. Right?


Terry: You recommended "Also, NEVER resize in PS, let QU do that automatically," What do you mean by automatic resize. I did not get that part?

thanks again
msoomro

Thank you Terry.  This discussion had helped me understand the true potential of QU

Hi,
Pleased to hear you are getting on with QU ok. It is very powerful for printing in terms of layout etc. There's lots of features and like any sophisticated program, takes a while to learn the detail. As we said, ask here; if one the regulars here can't give an answer, Mike, the program developer monitors the forum.
Yes -
Hover mouse over thumbnail, hold CTRL and press the space bar - that gives the soft proof version. Repeatedly pressing the space bar changes to & from the soft proof view.
Soft proof is also available in the Page Editor, no quick comparison though.
One other clever feature related to print colour management, you can print images on the same page, or set of pages (ie. those in the queue), each with a different printer profile. Useful when comparing profiles.
Terry