HP 220 - Manual (Page 127)

The order in which you replace the screws on the overdrive enclosure is important
1 Position the overdrive enclosure between the two sideplates.
2 Replace the two indicated screws. (Short dogĆpoint screws.)
1
2
Torx-15
LEFTĆHAND SIDE RIGHTĆHAND SIDE
Take care not to damage the mediaĆsensor flags. The overdrive enclosure
should not touch them.
C A U T I O N
6Ć63 Removal and Replacement C3187Ć90000
ReĆinstalling the Overdrive Enclosure