Stripes down left margin

Hi, I am having a printing problem. when I print a full page color I get thin stripes or band down the left margin. So I printed a test page with blocks of color to see if any printed out ok. The black is solid so it yellow and red. blue green and purple have the stripes. They are very very thin stripes, doesnt really have a color (not the blue like a bad color pcu) it just looks like some color is missing?? If increase the print margins @.35 I can get rid of the stripes. I just recently changed out the waste toner bottle, and refilled the yellow toner cartridge.. I pulled out the waste toner and both color and black pcu, and the fuser up front just to check to see if there was anything obvious. No luck, in fact it seems worse.
Thoughts?? Comments