 So here's a Trader Troubleshoot Z-Rex EA, so basically this is how I move the cartridge away and here's what they look underneath. So you have this one is a stopper, so when the printer closes it's going to go up and it's going to lock the printhead right here. So the printer can now move. If somehow it gets knocked and during the shipment it gets stuck here, you need to un-stuck it. And this piece also gets moved during the shipment. It is in some kind of awkward position and normally another kind of error is 0x69. And this slot is the trigger for the printer lid. So when the printer is closed and there's a notch, actually jam into this slot. So if you want to see what's going on inside the printer, you can just put a piece of paper towel. So the printer, double fold the printer thing that the printer lid is closed. You can see at the resting position, this lock is going forward and got locked. Let me turn this printer off. I will show you how this lock works. Now you can see when it's turned off, the printer has locked too. So this is when during the shipment, something gets knocked off the balance here. Let's say if you're doing the shipping and the different gets stuck, or somehow you get some debris falling here and it stops the cartridge movement. So I'll just jam a pen here. Now I turn the printer on and you can see what happened. You can hear noise immediately and you get a printer error 0x8. So you already see what the problem is. So this thing got jammed. Another thing can happen is you may have this tube get caught right here. The one the tube move here, it get caught right here. And if it's a tube, and if it's a tube get caught, what you do is just you move the tube further. You put the tube a little bit shorter from here. You just put it here, just a little bit. Don't fix it. And in that case, you're going to hear the grinding sound sooner, a little bit later than the thing cannot move jam here. So when you shorten the tube, just make sure that when you push on the side, the printer can reach this side. You don't want to give too much or you don't want to give too little. So of course it's easier if you can move the printer out of the way to see what's going on underneath. So one way you can do it is we'll turn the power on and off. And when you see this lock, if the lock goes down, get it released and you unplug the power right away. So let me try to turn it off and on. And then I have another hand on the power switch right now. So now you can move it around and see what's underneath and what seems to be the problem. You can see the lock here. A second way to move around, which is you can just use your finger to push this lock down and then move it. And you cannot move all the way because there's another catch here. So I'm not going to use my finger. Just push it down and now I can move it. Then you have another catch here. So this is how much it can move. So using this method. So the best way is just turn the power back on and off. And when you see when the lock is not spring loaded and you shut the power off. Another trick I have is with the printer powered off, I just use my hand to push this one down and not move this to an awkward position. Now I turn the printer back on and let the printer figure it out itself. You can see it's a synchronized movement. If you just break the sequence, the printer gets confused. But once you get the sequence right, I'll fix it myself.