I'm printing some color jpeg images on an HP officejet j4550 from a macbook. I can get a nice clear image when I print with the default settings but that gives me almost a full inch of margins. When I change it to print without borders the images stretch to the dimensions I want but they get very dark and blurry, even though it's only a little bit bigger. Does anyone have any tips to print more sharply? I'm just printing from the mac's image viewer program.