Printer trouble message on printer screen 00c515c4 all lights flahing carnt do anything Hello, I have the same problem with my HP C5280. Error message on the printer is 00C515C4 and the bottons are falshing. I bought this HP two weeks ago.

Power cycle the printer. If problem remains, try a partial reset. You can do the partial reset as follows:
1. Unplug and replug the unit.
2. when lights flash on power up, hold down the ON/RESUME and PAGE SIZE buttons together.
3. When only the ON/RESUME button light flashes, you can release the buttons.
4. When the lights stop flashing, the reset is all done!

If problem remains, you are fully justified to ask HP to replace the unit for you (well, if you're still in warranty!). Good luck :)

Disconnect the power cable for some minutes. Erase on your PC all the print processes on course.
Reconnect the power cable. The mini-monitor will switch on its own. SWITCH ON THE PRINTER TOO, now.
The printer authomatically resets in a minute. When it finishes, and you can't hear sounds and movement inside the printer, you can work normally.

I get the same error message now and then, same symptoms.

A quick fix is to disconnect the power cable, wait about half a minute, then reconnect the power cable.

1. power cycle you All-In-One.
2. Semi full reset the All-In-One.
3. Try to print a self test page. If you can?

However this issue is an internal one.

The only solution is replace the bloody All-In-One if ya guys are in warranty.