Service Manual
Page 43
... Cover ...IV-21 1.9 Handset Mount and Hook Switch PCB (for models except the FAX-8250P/MFC-9050) Side Cover (for the FAX-8250P/MFC-9050 IV-24 1.10 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator IV-26 1.11 Laser Unit and Toner Sensor PCB IV-28 1.12 Bottom Plate IV-29 1.13...
... Cover ...IV-21 1.9 Handset Mount and Hook Switch PCB (for models except the FAX-8250P/MFC-9050) Side Cover (for the FAX-8250P/MFC-9050 IV-24 1.10 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator IV-26 1.11 Laser Unit and Toner Sensor PCB IV-28 1.12 Bottom Plate IV-29 1.13...
Service Manual
Page 45
WARNING For the FAX-8250P/MFC-9050 (French version only)/MFC-9550/MFC6650MC which has a NiMH battery on ...aluminum foil). It is HOT! (4) Be careful not to take care not to the torque values listed on the printer. Be sure to lose screws, washers, or other related portions function properly before transporting the PCB (in this chapter... during maintenance work. (1) Unplug the power cord from the power outlet. (2) When servicing the optical system of the laser printing unit, be put back in. (6) When using soldering irons and other reflective objects in a short circuit, overcurrent...
WARNING For the FAX-8250P/MFC-9050 (French version only)/MFC-9550/MFC6650MC which has a NiMH battery on ...aluminum foil). It is HOT! (4) Be careful not to take care not to the torque values listed on the printer. Be sure to lose screws, washers, or other related portions function properly before transporting the PCB (in this chapter... during maintenance work. (1) Unplug the power cord from the power outlet. (2) When servicing the optical system of the laser printing unit, be put back in. (6) When using soldering irons and other reflective objects in a short circuit, overcurrent...
Service Manual
Page 76
...lift up the main PCB and disconnect it from the low-voltage power supply PCB. (4) Disconnect the following harnesses from the PCB. For the FAX-8250P/MFC-9050 (French version only)/MFC-9550/MFC6650MC, route the battery harness as shown on the next page to hold the three harnesses (scanner motor..., when transporting the main PCB, be sure to remove the battery ASSY (Ni-MH battery) from the main PCB: • Speaker harness (2-pin, P7) • Laser diode harness (5-pin, P6) • Toner sensor harness (4-pin, P5) • Polygon motor flat cable (5-pin, P4) • NCU harness 2*2 (6-pin, P13) ...
...lift up the main PCB and disconnect it from the low-voltage power supply PCB. (4) Disconnect the following harnesses from the PCB. For the FAX-8250P/MFC-9050 (French version only)/MFC-9550/MFC6650MC, route the battery harness as shown on the next page to hold the three harnesses (scanner motor..., when transporting the main PCB, be sure to remove the battery ASSY (Ni-MH battery) from the main PCB: • Speaker harness (2-pin, P7) • Laser diode harness (5-pin, P6) • Toner sensor harness (4-pin, P5) • Polygon motor flat cable (5-pin, P4) • NCU harness 2*2 (6-pin, P13) ...