recently my printer stopped printing in colour, so I replaced two cartridges that were almost empty, then I got the green light and the dreaded 5 amber flashes . This indicated a print head problem.I removed the print head but could not see anything untoward so replaced it. stil;l had the amber 5 flashes .Went through all the steps of holding the power button in and pressing the resume button, but to no avail. now I have no power at all. The machine is totally dead.----can anyone help?