Scanner Unit; Main Pcb Assy - Brother HL-730Plus Service Manual

3.5

Scanner Unit

(1) Remove the three screws.
(2) Lift the scanner unit to obtain access to the panel sensor PCB.
(3) Disconnect the three scanner unit connectors from the panel sensor PCB.
(4) Remove the screw and disassemble the Toner sensor PCB from the Scanner unit.
Toner sensor PCB
Scanner unit
S Seal sponge 1
NOTE: Never touch the inside of the scanner unit or the mirror when disassembling or
reassembling. If there is any dirt or dust on the mirror, blow it off.
3.6

Main PCB Assy

(1) Remove the four screws securing the main PCB holder to the back of the printer.
(2) Grasp the hooks at the left and right ends of the PCB holder and draw out the main
PCB assy.
Main PCB assy
Hook
Fig. 3.6
Rail
Screws
Fig. 3.7
III-7
Mirror
Connectors (P2, P3, P9)
Panel sensor PCB
I/F Shield assy
Hook