Shane,
Your experience is one of my concerns (that they won't really test it, that it arrives as yours did, and i need to go through additional pack/unpack/test/clean/retest/call/repack and wait for a replacement cycles). There is nothing at this point I can do other than to wait. My question to you is whether, in spite of the fact that the maintenance tank arrived 3/4 full, and that most of the ink ink had been run through it, necessitating "another" cleaning, did it works as is was supposed to (without clogs), or are you now waiting for your 6th machine?
I am beginning to rue the day that I sold my trusty 4800.