Dell 2135cn Service Manual page 597

Chapter 3 Removal and Replacement Procedures (RRPs)
10) Release the harness of the HARNESS
A-OP-OPP (PL10.2.13) from the rib of the
printer, disengage the connector (P/J5301)
of the HARNESS A-OP-ESS (PL10.8.12).
11) Release the HARNESS A-OP-OPP
from the hooks of the printer.
12) Insert the right side under part of the
COVER ASSY FRONT (PL10.2.1) into the
inside of the printer.
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Version 2 2008.03.31