Specifications: Part Number: RM1-5420 Quality: Original Secondhand and Good Quality Inventory / Warranty: Yes Model Compatibility: HP CP2025 CM2320 M351 451 375 475 476, Canon LJ7200 MFC8350 Delivery Options: China Post Mail, ESM, DHL, FedEx Product Type: Tray 1 Solenoid for Printer Parts ...
The registration switch/sensor appears to be ok & I suspect its more likely to be a sticky solenoid SL2 (as indicated in the SM), but is virtually impossible to get at. I've since seen information on the web that does suggest a sticky solenoid, but points you in the direction SL5, ...
There's no need to try to take the solenoid out from the frame Get the spring(don't lose it) of and take the metal out to clean it off or just insert a V-shape paper in-between and all will be done. Be careful not to lose the sprint and the L-shape metal under working....