Strange things: The Printer

Hey everyone.

I've got a strange problem which I feel has a solution I've overlooked, but I've done so much that I don't what that could be. First of all, the printer prints out the text and/or graphics all right, but they're cut off on the right margin. They go beyond it and just get cut off, so the left margin is huge. I've tried resetting my margin properties on many programs but they were fine to begin with. The memory usage by the printer driver is fine, and it's been the same for a long time so it's not that. And the dpi is fine, as well. Hasn't been changed by anything. But the margin is still messed up and sometimes, the sheets of paper come with this weird, blue ink stain on the top. However, there isn't a leak on any of the printer cartridges. I have a feeling my printer may have become corrupt, but I still don't know enough about this. Anyone have any suggestions as to why this is happening? And if it's of any help, this started fairly recently. However, it was not provoked by anyone using the computer and printer. It just happened to be like this one day. Thanks in advance.