SH-P1 Training
81
Slide 81
New Fusing Unit Detection 
 In a new fusing unit, the looped wire on the fusing unit connector contains 
a fuse [A].
 When power is switched on after installing a new fusing unit, the engine 
board detects the fusing unit through the looped wire. However, the fuse 
opens very shortly afterwards.
(Also, see slide 27.)
No additional notes.