For disassembly you just unclip the top side four times. It is a very easy and reversable process. You don't need to take off the chip or flex band like I did (out of curiousity).
If you want to find out more, the relevant patent should be EP0875385B1. It does not mention though, what the plastic bag between the gray clamps should do that is attached to the top. I guess it is for applying not too high pressure on the ink (or the binder in our case), since it is connected to the outside atmosphere through a vent opening.
This started because I wanted to know, why our ProJet 460 complained that its printhead is too hot (1006: Head Temp Too High). We have just replaced it, but I am still curious to know how things work.
- What does the temperature sensor look like?
- Where should it be located?
- Where would you find more background on the history of this printhead? I know that HP hosts their HP Journal and I would have to go through all the numbers. Is there anything else or can you give some pointers?