My HP Photosmart C6180 repeatly keeps turning on and off, but it never makes it to main screen. The HP loading continues to load and then auto shuts down (i do notice a flash of orange screen) I tried to remove power ( yes all three spots) and then i tried to reset it by pressing # & 6 together while its off and release when its on. I don't understand why its working

Apparently some defective components were used in the construction of the logic board (see photo). On my C6180 there were 3 failed capacitors (the green cylinders - the puffed top indicates failure) and a 4th from the same manufacturer (TEAPO - many unfavorable web references to this manufacturer). I purchased 3x 330uF 16V and 1x 680uF 10v rated to 105 degrees Celsius (total about 60cents). On the logic board, the capacitors I replaced are labeled C613, C614, C660 and C662. If you are not comfortable replacing the parts yourself (or don't have a soldering tool), you will have to find someone who will. The time to repair should be less than 30 min - I did it in 25 min with only a solder pen. This fixed the on and off problem and also fixed the ink system failures the printer was having. A similar fix may apply to other printers .