thanks mark i took everything apart and put it all back together and no more error. great, but now it wont print anything but one black channel (poorly). i read on the forum that when a printer behaves this way it's either the motherboard, fuse or ribbon cables. unfortunately i have a DA printer and there's not a lot of help out there for this abandoned stepchild machine. i took off the right side panel and look at the board there couldn't see anything visually, i don't have a voltage meter so just did visual, and no replaceable fuses there. i read online that the mother board is in the base of the unit which looks like a big process to get to. should i start with the ribbon cables, seems like a real possibility since i just took them in and out 4 times? if the head still had liquid in it in the electronics what would be the first thing to go?
when i had the head off i pushed warm distilled water through it to fix a blocked magenta and did the same to the rest because of spotty nozzle checks. made sure not to get air in there so left the water in and re-attached. now just one black channel printing very poorly.
If it prints anything, it's not the motherboard. If the fuse was blown, it would go through the motions and nothing would print.
It could be a couple of things. The ends of the cables themselves could be bent in the printhead and losing contact. The thin metal can fold over and lose contact, but my guess is this isn't the case. This is normally 1 or 2 channels at the most dropping, not 7.
It could simply be the system isn't primed properly. On the 4800 system, if you turn the dampers straight up, you should be able to pull ink through them using a syringe, then place them back in the system. It will fill up the dampers and then run a clean. Running a power clean would be better, but it does use quite a bit of ink to do this. I would run a regular clean and do a nozzle test to see where you are with it afterwards, or run a power clean now and see how the nozzle test looks.