Dell 2130cn Service Manual page 540

Chapter 3 Removal and Replacement Procedures (RRPs)
15) Disengage the two connectors
(P/J101, 111) on the PWBA ESS (PL8.1.7),
release the harness from the hooks of the
DUCT FAN (PL8.1.2).
16) Remove the one screw (silver, 6mm)
that fixes the DUCT FAN to the printer.
17) Release the two hooks of the DUCT
FAN, using a miniature screwdriver, and
then remove the DUCT FAN from the
printer.
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