SM 3-27 G147 
Replacement 
Adjustment 
3.8.5 TD SENSOR 
1.  Remove the development unit. (See ‘Development Unit’.) 
2.  Empty all developer from the development unit   
 
3.  TD sensor [A] (  x1) 
 
  The TD sensor is attached to the casing with double-sided tape. Pry it off with 
the flat head of a screwdriver. Use fresh double-sided tape to re-attach the 
sensor. 
4.  Pour new developer into the development unit and do the TD sensor initial setting 
using SP2-801. 
 
  When performing the TD sensor initial setting, cover the toner entrance hole 
with a piece of paper.