Vertical Lines (bumps) on Finished Print Product

Hey Guys, got this issue with my k8200 printer where there are vertical lines/bumps on my finished product. It doesnt show much on the y axis (it does slightly) but the x axis is pretty rough looking. I have attached a picture for you to have a look. Any reasons why this is happening. I am sure it is not just me.

http://postimg.org/image/srfi09j05/

Here is another image to show the problem further.

http://postimg.org/image/7ydywvy79/

Did some more research. I think they call it ghosting, But havent found any fixes. Looks like it has something to do with acceleration or something.