※ This is a new compatible paper feed roll. ＜My personal opinion on the performance of this compatible roll＞ The paper feed performance is equal to or higher than the genuine product. ※ Note: There is a correct orientation for installing the paper feed roll. I will enclose a note about it. ※ Replacing the roll requires removing and installing various parts. I will also include a handwritten, rough disassembly/replacement procedure for the MG3630/3530. ＜How to identify paper feed problems caused by roll deterioration or wear＞ If the problem is "paper feed failure due to roll deterioration or wear," it can be fixed by replacing the roll. Place a single sheet of paper in the paper tray, and while slightly pushing the back end of the paper in the feeding direction, give the copy or print command. If it copies or prints without any problems, it is almost certainly "paper feed failure due to roll deterioration or wear." In other words, if you can assist the paper feed by hand, it is almost certainly "paper feed failure due to roll deterioration or wear." There are various other causes of paper feed problems, but about 90% of the ones I have recycled have "paper feed failure due to roll deterioration or wear." If you hear a "crack" or "scratching" sound like plastic breaking during the initial power-on operation, it is a paper feed failure due to mechanical damage. In this case, replacing the roll will not fix it. ※ To reiterate, replacing the roll requires removing and installing various parts. ※ It is difficult to provide support via text messages for disassembly, replacement, and assembly, and I generally do not offer support. I will try to answer questions to the extent possible... The item will be sent via regular mail to reduce the price.