Laser Unit 
 
M0C3/M0C4/M0C5/M0C6/M0C7  4-44  SM 
4.6.3  LASER UNIT THERMISTOR 
1.  Remove the top cover (Printer models: Top Cover, MF models: Top Cover). 
2.  Release the four hooks, and remove the laser unit top cover [A]. 
 
3.  Remove the laser unit thermistor [A].