Hello, I was wondering if someone can help me. I have a weird problem. I can copy normal, but then my scans are Dark, but if I adjust my Background Cleanup & Sharpness, then I can scan normal, but copy light. I have almost 100000 pages left before I have to do another maintenance kit and another 14000 pages before the next Doc Feeder Maintenance. The economode is off, I've updated the firmware to 20131118 48.292.8 but still no luck. This is for a M5035 that is well past it's warranty. We did not always have this problem, it just started to gradually get worse. I'm not sure if I should try taking something apart to clean it (light? sensors?) I am willing to do it, but since I don't really have much clue as to what would be causing this, I'm not sure where to start.