Dell Dimension 4600C - Manual (Page 15)

Setting Up and Using Your Computer
15
Connecting a USB Printer
NOTE:
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 connectors on the computer and the printer.
The USB connectors fit only one way.
USB printer
cable
USB connector on
computer
USB connector
on printer