has 1020 HP LaserJet uses 12A cartridge is about 2 years old. Printer need new cartridges about every 4-5 weeks, does about 1000 sheets. Put new cartridge in on 7/24/09 on 7/27/09 it was out of ink. Called Customer service in India, had to put me on hold to see if I was telling the truth about the 1000 sheets per cartridge, he thought that 100 sheets was a lot. I gave him the date that was on the box. He asked for the serial number on the printer which was not relevant since many printers use the same cartridge. After 45 minutes on the phone and on hold 4 times. I said I give up. HP can keep the $75.00 I paid for the cartridge. We have always been happy with HP, we have stock in HP but your customer service department can't speak english well enough to express himself and did not know anything about this printer or how many pages it should print approximately. As far as I am concerned we don't need to purchase another HP anything. I have the control to do this.