Oki IP-6620 Maintenance Manual page 438

Notes for installation
 Check that the MICRO-SWITCH 4 touches
the contact point only when the lever is
pressed. If the position is not correct, use
the MICRO-SWITCH 4 leeway to adjust
the angle.
 Insert the spring extremity into the two
protrusions on the lever.
OKI Data Infotech Corporation CONFIDENTIAL
Chapter 6 Parts Replacement (Disassembly/Reassembly)
Spring
Lever protrusion
6-109