regarding your printing problem of the narrow strips, I've had that happen before also. It happens when you select a paper size that is wider than what the printer registers of the loaded paper. When I print something that might be tricky that way, I always have the preview box checked, to show me before the printer starts.
The work around is to note what size paper the printer is recognizing (after you have loaded the paper), and choose a custom size slightly smaller.
With Qimage the printer measured size is represented in the driver menu (imperial units though) and it is easy then to make the print page width setting slightly less. That has been my habit since I had similar issues.
met vriendelijke groeten, Ernst Dinkla
Dinkla Gallery Canvas Wrap Actions for Photoshophttp://www.pigment-print.com/dinklacanvaswraps/index.html