Help me with at least 3 please because I don’t really understand this!

How to use a copy machine:

Make sure the machine is powered on and warmed up.
Check to make sure there is enough of the correct size paper loaded into the machine.
Lift the feeder and check the glass to make sure that there is no dirt, marks, or other items left on top of the glass.
Place a single sheet (original) or item you want copied face down on the glass in the proper position (read and follow the guides).
Close the feeder on top of the glass and your original.
Review the setup on the display to make sure you have the right settings (e., color, black & white, size paper, number of copies, etc.)
Press the copy button.
Remove your copies and check them to make sure that they are what you wanted copied.
Remove the original and leave the machine exactly as you found it for the next person in your office to