I have an apollo printer which I don"t use to often. It is approx. 2 yrs old. I still have the original cartridge and order a refill kitt from a place in Fla. When I refilled the first time, the colors never mixed right, I might add that this printer uses an HP 51625a cartridge. The refills I got are in tri color caps and you remove the old one and put the prongs in the old cartridge. It worked for the first two, however within the past two weeks when I tried to print it was very light and mostly unreadable. So I put in the new refill kit and still didn't print. I tested the communications and did a clean on the ports and tried a test print and it now does no print at all. When I tried to bring up the information on the printer lo and behold it is all in Germany. I emailed apollo and they said it was out of warranty, which I already knew and get a new cartridge, which is more sales for HP. I have emailed them several time since and they will not respond. Of course when you have a cheap printer you will get cheap service. I also tried the setting on a wet towel and I have cleaned the back of the cartridge with the printer jets with an iso/alcohol. If any one has one similar to mine would you please let me know if you have had any problems simiar to mine. Thanks in Advance and Happy New Year.