Ed Ruf wrote:


Any ideas???

IIRC, HP carts have an expiration date. Is your cart beyond this date?

Didn't see the original message, but would add that certain HP printers use 45
black carts, and others use 15 black carts. There is no physical difference
between the two, other than the fact that 15s have 1/2 the ink. A printer set to
use the 15 will not print with a 45.