Canon Community

I'm attempting to print 3x5 labels on both Gloss and Matte labels, but I'm getting white spec areas and areas of "Over-Run"... not sure what to call it.  My print is brand new, and the labels are of good quality from sheetlabels.com, so I can't figur...

I recently purchased an MF733CDW printer and it appears as though I cannot do "borderless" printing on it??? Am I missing something, or is there absolutely no way to get borderless printing to work with this printer?? Thanks in advance!