Sharp AR-M350N Copier "fault e7 11" Questions

...fault code E7-11 Tried turning machine on and off, fault will evetually clear after several hours, (turning machine back on after auto power off). Any help greatly appreciated. Hello sir; The error ...

...fault 16 SIMM not present or installed incorectly 17 Page rotation error in RAM 80 Electronic sort board error 81 82 84 88 E7 03 Lens position error 04 White level calibration error 05 Black level ...