ALL LIGHTS ARE FLASHING

It insists there is a Cartridge problem on the Printer............ In this Case take out the Paper from the Paper Feed Tray........ Unplug the Power Supply from the Printer.......... Remove both the Cartridges from the Printer.......... Now take a size 10 Envelope fold it so that it should become like a thin long strip........ Now Insert that Envelope on the left side corner of the Printer and move it from right to left and left to right as fast as u can for about 10 times.......... Now Insert the Ordinary Papers onto the Printer and insert both the catridges and Turn on the Printer...... Blinking Stopped...........Issue Resolved....... Still Blinking: Remove both the Cartridges take a Paper Towel turn the catridges direction so that u can see a Copper plate with small boxes on it....... Just wipe it twice or thrice with the Paper Towel.......... Now insert it and Power on the Printer and see whether the Lights are still blinking if it is still blinking...... Get the Printer Replaced!!!!!
Good Luck!!!!!