Brother HL-4040CN, HL-4050CDN, HL-4070CDW Service Manual page 172

(5) Check the engagement of each roller and move the Paper feed frame unit to the left hand
side of the main body until it stops to assemble it.
<Left side>
Side frame L
(6) Make sure that there is no looseness of the harness. If there is, pull the harness from the
outside of the side frame L.
(7) Check that the Feed roller TR and Roller holder ASSY are moved smoothly.
<How to check>
- Check that the Feed roller TR is turned smoothly.
- Check that the Separation roller is turned smoothly.
- Check that the Roller holder ASSY is push up smoothly.
Note:
If they are not moved smoothly, they may not be assembled correctly. Reassemble them
from the beginning of the procedure.
(8) Secure the screws in the order as shown in the figure below while the front door unit ASSY
being closed.
*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.
Taptite, bind B M3X10
(Tightening torque: 0.70 ±0.1 N m)
1
<Left>
<Front side>
Fig. 3-74
Taptite, bind B M3X10
(Tightening torque: 0.70 ±0.1 N m)
*1
Taptite, cup S M3x6
<Front side>
Fig. 3-75
3-63
Paper feed frame unit
*1
2
3
<Right>
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