Dell Dimension 4550 - Manual (Page 21)

Setting Up and Using Your Computer 21
4 Turn on the printer and then turn on the computer. If the Add New
Hardware Wizard window appears, click Cancel.
5 Install the printer driver if necessary. See the documentation that
came with your printer.
Connecting a USB Printer
HINT: You can connect
USB devices while the
computer is turned on.
1 Complete the operating system setup, if you have not already done so.
2 Install the printer driver if necessary. See the documentation that
came with your printer.
3 Attach the USB printer cable to the USB connector on the computer
and the printer. The USB connectors fit only one way.
parallel printer
cable
parallel connector on computer
connector on
printer
screws (2)
clips (2)
notches (2)