Some months ago after drum and developer replacement image was light especially at the edges. I cleaned optics, swapted drum unit, swapted charge roller and blew with air laser unit with no result. Anyway i changed paper direction in cassete and customer worked the machine. Today i replaced developer , executed sp 2 801 . The image is ok but again light.especially at the edges How can i adjust darker image also any idea where is the problem? Perhaps i did something at first but it's not the first time i replace drum and developer. I just worked only with drum unit. On the other side i swapted the whole drum unit and image is still light (the other unit worked perfect in other machines.