I have got one of the
HP CLJ 2550
printer from customer for repair, and it is not accepting any magenta cartridge at all!
We first installed our reman with new
chip ..... red light blinks
Then the customer put in a brand new OEM ..... red light blinks
Only the magenta cartridge ... the
printer wouldn't accept any of the magenta cartridge at all!
What do you think it is????