It's a very scary case, and I'm using 1 print for a part because it's completely stupid.
In the case of a fake paper jam, an attempt was made to repair it by citing postings from YouTube materials and other forums, but it failed, eventually moving to the official service center, also at the official service center ---new motherboard and pe sensor were exchanged, but it worked again Serious damage to the head during one repair attempt.... Not sure if it's because of [Chipless firmware], 3 of the same [Chipless firmware: indicated by ink level pool] 2 are from another brand [Chipless firmware: ink] Volume moving display] 1 out of 3 fake paper jams.
Error message while printing without any prior warning....unlucky case -.-
Use an air cleaner spray with a long straw to clean with a roll. Do not try the roll because it is inconvenient to use.
Even if only the pizza wheel is removed, there are some that are of good quality, but if not, the pizza wheel + star wheel holder assy (plastic: the paper inlet side, not the outlet side) is removed and used. Suction fan is not planned. I tested it a few times with a model with this symptom, and the conclusion is that the internal leveling problem and the strength of the ball fastening, etc... When the pizza wheel is removed, a minute deformation is expected in the star wheel holder assy parts... The conclusion is that when the star wheel holder assy is removed no big problem.
100% empathy. thx~