if you are seeing 100% jetting, but you are still failing autojet calibration you probably need to clean your image sensor lens. I would reccommend powering the unit down, and removing the camera to clean it. You can used swabs with isopropyl alcohol, and an air gun to remove the ink and dust deposits.
There are two sensors on the board, you only need to worry about the one with the visible lens. Clean the lens itself as well as the surrounding LED's.
When you do this, make sure to be mindful of the cable connections. If you reverse the cable connectors you will cost yourself a lot of money by burning out your camera board and or your headboard.