(20)Remove the two B M3x6 Taptite screws, and then remove the Pulley ASSY.
(21)Remove the Pulley spring.
Taptite, pan B M3x6
Pulley spring
Pulley ASSY
Fig. 3-143
(22)Release the Hooks to remove the Photo interrupter.
(23)Disconnect the Connector from the Photo interrupter.
Photo interrupter
Hooks
Hook
Connector
Scanner base ASSY
Fig. 3-144