Canon IMAGEFORMULA CR-190I Instructions Manual page 55

Pinch the Pickup Roller at the rim and the fixing lever, and
then remove it.
NOTE
If the Pickup Roller is not removed easily because of the fixing lever position,
turn the Pickup Roller by hand.
Attach the Pickup Roller.
Fixing Lever
Attach the Feed Roller. Align the notch on the roller axis with
the hole on the roller.
Attach the Separation Roller with pushing the Separation OFF
Mode Button. Align the notch on the roller axis with the hole
on the roller.
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