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wrote: My Docuprint CM225 fw is printing a single 1cm wide vertical coloured stripe down the left hand side of the page. It does this also if I copy a blank page, using the built in scanner. I have cleaned the CDT sensors, cleaned the transfer belt, taken out the toner cartridges and cleaned the print heads, run the CLEAN DEVELOPER in the maintenence menu, which sometimes improves the print but the stripe returns in a couple of prints. I have attached 2 photos of the printer problem. Does anyone know a fix for this problem?