If your HP Deskjet F2480 having trouble like mine, which is all LED blinking fast, you can still using the printer.
[for further information about F2480 Blinking lights, please visit this page.]
After testing my printer for various option including power adaptor, paper jam, and logic board swapping, I concluded that I having problem with scanner module.
So, what I do is pull the scanner ribbon cable out of the logic board and test again, then when I powered on the printer, only POWER and ATTENTION LEAD are blinking.
And, printer status on my computer said, "Scanner Failure" and ask user to do power cycle. I do a printer test, and it work fine. Now, my All-in-One works only as printer.
Posibble Problem in Future
If I not mistaken, when you change cartridges, this printer will print a pattern page that you have to put it on scanner for cartridge alignment, printer will fail again. But, I believed that you can cancel this procedure. How? I do not know yet.
* the end *