Sharp MX-M550U Service Manual page 403

(5) Process exhaust fan motor 4
1) Remove the rear cabinet.
(See "(1) Developing cooling fan motor")
2) Remove the sub duct unit.
(See "(4) Process exhaust fan motor 5")
3) Disconnect the connector and remove the process exhaust fan
motor 4.
Marks
REVERSE
* When assembling, fit the mark with the fan rotating direction.
(label on the back surface)
(6) Process exhaust fan motor 1
(7) Process exhaust fan motor 2
(8) Process exhaust fan motor 3
1) Remove the DSPF unit.
(See "A-(1) DSPF unit" in the "DSPF section")
2) Remove the scanner unit.
(See "(1) Scanner unit" in the "Scanner section")
3) Pull out the multi paper feed tray unit, and remove the manual
paper feed cover F.
4) Remove the right cabinet middle.
Fan blowing direction
MX-M700N FAN AND FILTER SECTION R – 3
5) Remove the right cabinet upper.
6) Remove the front cabinet band, and remove the front cabinet.
7) Remove the toner bottle. (See "(1) Toner bottle unit" in the
"Toner hopper and toner bottle section")
8) Remove the toner hopper unit. (See "(2) Toner hopper unit" in
the "Toner hopper and toner bottle section")
9) Remove the developing unit.
(See "(1) Developing unit" in the "Developer tank section")
10) Remove the process unit.
(See "A-(1) Process unit" in the "OPC drum section")
11) Raise the process DV cover diagonally, and remove the front
right cover.
12) Remove the front cabinet upper.