This “disassembly” is actually unfinished business…

1. I would like to point out, that for step 2 you really need a thin and long screw driver, otherwise you will have no luck with the corner screws, as stated above!

2. after step 4 there should follow taking out the motherboard, then removing the printing unit from the body, removing some more parts to finally clean the rolls and the printer head. That can solve the “white line” issues.

3. There’s a video on YT, not well done, but one gets the point on how to do it.

https://youtu.be/8-I-tVQJq-8