5-10 
6  Remove the shutoff valve.(MV9) 
   (Refer to 5.5 Replacement   
 of shutoff valve) 
 
 
 
 
 
7  Remove the 4 fastening screws 
  of the heating unit. 
 
 
Remove the rear cover (8 screws) 
 
 
 
 
 
 
 
 
8  Remove the connector and remove 
   the heating unit. 
 
 
 
 
 
 
 
9  Prepare a new heating unit and put an O-ring1.7 in the terminal area 
 of the ink-supply tube(E). 
 Perform the assembly after dipping the O-ring in makeup, and 
 confirm that the O-ring does not jump out of the hole. 
 
10  Attach the heating unit. 
 
 
MV9 
Heating unit