Hi\n\nAnyone know if there is a history of bad batches of toner cartridges\nwith this printer. We are using genuine HP cartridges and appear to\nhave major leakage from at least two Yellow cartridges plus serious\nleakage at one end on at least two Cyan cartridges. Magenta and black\nappear to have no leakage problems at all.\n\nIf not a cartridge issue, what else could this be? Printer will print\noff around 40 sheets with no problem, but then major smearing of\nblue/yellow (apparently) appears. After printer left for a while\n(cools down?) this behaviour is repeated.\n\nAny help appreciated!