Small group of spots repeating on page

Have you tried contacting Okidata, 2000 Bishops Gate Blvd.,Mount Laurel, N.J. 08054-4620 Phone 1-800-OKI-DATA(654-3282) or visit www.okidata.com I have a similar problem with my OKIPAGE 10e. 1 inch wide black line, 2 inches from right hand side of page from top to bottom of 8 1/2 x 11 pages. I also cleaned black dust off green roller. Problem continues. Conclusion: I'm not an expert, but I think your wiping, checking, and cleaning, is a waste of time. I think your problem, and mine, is probably not a hardware problem, although I removed my black toner cartridge out of curiosity and perhaps re-installed it incorrectly. My guess is it's some sort of electronic problem, such as programming error, or software problem.