Canon MP610 Service Manual page 21

3) Remove the LCD and panel board from the panel frame.
<Using longnose pliers, hold the LCD hinge through its two holes. While moving the hinge to compress the spring, remove
the LCD from the panel frame.>
<Remove the panel chassis, and panel board (6 screws).>
4) Remove the Easy-Scroll Wheel from the panel board.
<Be cautious not to touch the grease between the wheel and the wheel base.>
See 3-3. Adjustment / Settings, (3) Grease application.
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