Dell 2150cn/cdn Color Laser Printer - Manual (Page 50)

48 Installing Optional Accessories
CAUTION: Be careful not to pinch your fingers when lowering the printer onto
the optional 250-sheet feeder.
6 Secure the optional 250-sheet feeder to the printer by tightening the two
screws provided with the feeder, with a coin or similar object.
NOTE: The screw hole is located in 216 mm recess from the front of the
printer.
7 Insert the standard 250-sheet tray into the printer, and push until it stops.
8 Re-connect all cables into the back of the printer, and turn on the printer.
NOTE: The printer will automatically detect the attached tray but will not
detect the paper type.
9 Print the printer settings report to confirm the optional 250-sheet feeder is
installed correctly.