Brother HL-4040CN, HL-4050CDN, HL-4070CDW Service Manual page 220

(2) Remove the bind B M3x8 Taptite screw, and then remove the Toner sensor PCB ASSY K
(TE/NEW) from the Frame unit.
(3) Remove the cup B M3x8 Taptite screw, and then remove the TE protect film 2 and Toner
sensor PCB ASSY Y (TE/NEW) from the Frame unit.
(4) Remove the bind B M3x8 Taptite screw, and then remove the Toner sensor PCB ASSY M
(TE/NEW) from the Frame unit.
(5) Remove the bind B M3x8 Taptite screw, and then remove the Toner sensor PCB ASSY C
(TE/NEW) from the Frame unit.
<Left side>
Toner sensor PCB ASSY C
(TE/NEW)
Taptite, bind B M3X8
(Tightening torque:
0.55 ±0.05 N m) *1
Taptite, bind B M3X8
(Tightening torque:
0.55 ±0.05 N m) *1
Toner sensor PCB ASSY M
(TE/NEW)
Taptite, cup B M3X8
(Tightening torque:
0.55 ±0.05 N m)
*1
Tightening Note:
When tightening the screw, slowly turn it counterclockwise (in the direction to loosen the
screw) with your hand until you feel that the screw is a little dropped in the hole. Then,
slightly turn it clockwise (in the direction to tighten the screw) with your hand and tighten
it according to the specified torque with a screwdriver.
TE protect film 2
*1
Toner sensor PCB
ASSY Y (TE/NEW)
Fig. 3-164
3-111
Frame unit
Toner sensor PCB
ASSY K (TE/NEW)
Taptite, bind B M3X8
(Tightening torque: 0.55 ±0.05 N m)
*1
Confidential