Oki LP-1040 Maintenance Manual page 401

2.
Keep the UPPER-PAPER-GUIDE-ASSY
open and use a pair of needle-nose pliers to
remove the clip rings on both sides.
3.
Slide the UPPER-PAPER-GUIDE-ASSY to
the left and pull out towards you from the right
side to remove it.
4.
Unplug the connector.
9-114
Clip ring, one per side
UPPER-PAPER-GUIDE-ASSY
UPPER-PAPER-GUIDE-ASSY
(1)
(2)
INT5 (MS06-1 and MS06-2)