惠普打印机LJ5550维修代码59.51 售后技术交流平台 2016-11-16 22:30:47 定影单元问题 售后技术交流平台 2016-11-18 13:13:02 59.51定影问题吧 售后技术交流平台 维修师傅 2016-11-20 22:55:14 59 error refers to a Printer motor Error.
59.51 however should not appear on screen. 59.5 is a "Print Cartriddge motor Startup error". The last character should be a letter for which Toner (ie. C, M, Y or K). However I would suggest that the 1 would be the Black motor (seeing as it is the top one). Considering you have replaced the DC controller recently I would say the most likely cause is you have either misconnected or not connected a cable. recheck all your DC controller connections and pay particular attention to connectors J1013 (Cyan Motor), J1031 (Magenta Motor), J1032 (Yellow Motor) and J1033 (Black Motor).