Brother DCP-9045CDN Service Manual page 234

(84) Disconnect the Connector from the Document cover sensor.
(85) Pull the Document cover sensor downwards to remove it from the Document cover sub
ASSY while pressing the Hooks of the Document cover sensor.
Document cover sub ASSY
Boss
Document cover sensor
(86) Turn the Document cover sub ASSY upside down.
(87) Remove the two cup B M3x10 Taptite screws, and then remove the Handle cover.
Connector
<Left side>
Fig. 3-119
Taptite, cup B M3x10
Handle cover
Fig. 3-120
Hook
Document cover sensor
Document cover sub ASSY
<Bottom>
3-101
Document cover sensor
Hook
Document cover sub ASSY
Confidential