Tips to trouble free printing.
	Do not stand or store cartridge on its ends /// Do not expose cartridge to sunlight or to any light for a prolonged period of time /// Never touch OPC drum surface (shiny cylindrical shaped object under cartridge flap) /// Turn off printer when not using it for an extended period of time. /// Do not attempt to disassemble cartridge.

Sick Printer

Is your printer misbehaving? Printing foreign charaters, frozen or displaying an array of blinking LEDs. The gremlins/menehunes may be affecting the microchips in your machine. Try unplugging or turning off the surge protector to your machine for about 10 - 15 minutes. If you need to, save your setting before you do it. It has worked on TV (almost tossed it);As well as, our computers. I'm guessing anything with a computer chip in it may freak out from time to time.