Copier Installation 
SM 2-8 D245/D246/D247 
 
 
 
 
 
 
 
 
 
 
14.  Put a sheet of paper on a level surface and place the development unit on it.   
 
  This prevents foreign material from getting on the sleeve rollers. 
15.  Remove the Upper Case [A] of the Development Unit (
 x 4,   x 3). 
 
 
•  Slightly bend the Upper Case to Development Roller side (Direction  ①  shown in a 
following picture) and release the center boss. 
 
•  To remove the upper case, hold the edges of the case as shown and lift up the case. This 
will release the bosses on both ends of the case. 
•  Side the floating upper case to back side (gear side) and remove the upper case. 
     
Rev. 01/22/2016
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The following figures show the structure of the 
Development Roller Case. 
Note the locations for hooking the bosses when 
removing the Upper Case [A] (See step 15). 
 
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