Brother HL-4000CN Service Manual page 173

3) Remove the connector (D) on the PWBA EFPROM STD on the left side of the
printer.
4) Remove the connector (E) on the S-HVPS on the left side of the printer.
5) From the printer, release the fan harness from the clamps.
6) Remove the connector (F) from the connector block.
7) Release the 2 hooks securing the gear slide to the shaft on the left side of the
printer.
8) Remove the gear slide from the printer.
9) Remove the rack V from the printer.
S-HVPS
"E"
10) Remove 7 screws securing the holder toner cartridge ASSY unit to the printer.
11) Remove the holder toner cartridge ASSY unit from the printer.
Screw, M3x6
Toner cartridge ASSY unit
Screw, M3x10
Screw, M3x6
PWBA EFPROM
"D"
"F"
Fig.4-67
Fig.4-68
IV-41
Rack V
Gear slide
Screw, M3x6