MUTOH Rockhopper II series Maintenance Manual page 65

Step 2 :
Remove the Mainboard cover 3.
Step 3 :
Follow the instructions in "Removing the panel unit assembly" to remove the panel unit assembly.
Step 4 :
Remove the connector between the cooling fan cable and the cooling fan assembly.
Step 5 :
Remove the 2 top and 2 bottom screws fixing the cooling fan assembly.
Step 6 :
Replace the cooling fan assembly.
Step 7 :
Remove the 15 screws fixing the Mainboard cover.
1 = Panel unit assembly
3 = Screws (M3x25) fixing the cooling fan assembly
5 = Mainboard cover
Step 8 :
Remove the 4 screws fixing the HEAD_DRV board assembly.
1 = HEAD_DRV board assembly
Step 9 :
Replace the HEAD_DRV board assembly.
Step 10 :
Remove FFC protection material between HEAD_DRV board assembly and Mainboard
assembly.
Rockhopper II series printers – Maintenance Manual
2 = Cooling fan assembly
4 = Screws (M3x20) fixing the cooling fan assembly
6 = Screws (M3x6) fixing the Mainboard cover
2 = Screws (M3x6) fixing the HEAD_DRV board
assembly
66 AP-74065, Rev. 1.2, 27/09/04