Brother HL-4040CN, HL-4050CDN, HL-4070CDW Service Manual page 91

(17) Remove the seven cup S M3x6 SR Taptite screws, and then remove the four Scanner
holders and Laser unit.
Taptite, cup S M3x6 SR
Taptite, cup S M3x6 SR
Taptite, cup S M3x6 SR
Scanner holder
Scanner holder
<Installing Procedure>
(1) Assemble the Laser unit with the four Scanner holders and seven cup S M3x6 SR Taptite
screws.
Note:
When assembling the Laser unit with the Scanner holders, ensure to put the positioning
boss of the Laser unit into the positioning hole referring to the figure below.
Taptite, cup S M3x6 SR
Scanner holder
Positioning boss
Scanner holder
Fig. 2-22
Taptite, cup S M3x6 SR
Taptite, cup S M3x6 SR
Positioning hole
Fig. 2-23
2-14
Scanner holder
Laser unit
Taptite, cup S M3x6 SR
Scanner holder
Frame unit
<Front side>
Scanner holder
Laser unit
Positioning boss
Positioning hole
<Front side>
Taptite, cup S M3x6 SR
Scanner holder
Frame unit
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