Hi Harish and others,
I didn't see all of the thread but:
I have a clx3175fw which for now 3 months only have printed with smears, lines, and ghost-images from preceeding pages.
shortly before trashing the printer because just getting a quote on fixing the printer in shipping whould be close to usd 150. Actual fixing price would probably be higher. If it hadn't been for the fact that I have a stash of toner and the usual consumables for the next 5 years of private use I would have trashed the printer!
BUT: a guy called Michael Ionita (Austrian I think) posted this fix which I finally found via google. And it just worked like a charm. I think it took me less than 8 minutes to fix the printer. And now I know the drill I'd be able to do it en 3 minutes next time. My only comment to his instructions is as follows: where he states "Use a small white paper and try to stick it into the top - like shown": make sure you follow the angle of the glossy plastic from the back of the printer and upwards - AND: "trying" is not enough, you have to push it firmly to squeeze it up to where the toner residuance should be removed. No violance needed - just try harder until you see the paper is picking up toner - and you should be home free.
Br, Jens K from Copenhagen.http://www.ifixit.com/Guide/Repairing+Samsung+clx-3175+Colour+Laser+Printer+Fix+black+vertical+lines/9183/1