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2 Slide the cover down, and then turn each screw clockwise to tighten.
Installing hardware options
Installing optional trays
The printer supports three types of optional input sources: an optional 550‑sheet tray, an optional 2,000‑sheet tray,
and an optional 550‑sheet specialty media drawer. Instructions for installing an optional input source are the same for
each.
CAUTION—TIPPING HAZARD: Floor-mounted configurations require additional furniture for stability. You must
use either a printer stand or printer base if you are using a high-capacity input tray, a duplex unit and an input
option, or more than one input option. If you purchased a multifunction printer (MFP) that scans, copies, and
faxes, you may need additional furniture. For more information, see www.lexmark.com/multifunctionprinters.
Note: The C736n, C736dn, and C736dtn model printers support a total of four optional input sources. The C734n,
C734dn, C734dtn, and C734dnw model printers support a total of three optional input sources.
CAUTION—POTENTIAL INJURY: The printer weight is greater than 18 kg (40 lb) and requires two or more
trained personnel to lift it safely.
CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory
devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the
wall outlet before continuing. If you have any other devices attached to the printer, then turn them off as well,
and unplug any cables going into the printer.
Additional printer setup 30