Samsung CLP 500N - Manual (Page 148)

M AINTAINING Y OUR P RINTER 6.30
Cleaning the LSU Inside the Printer
N OTE : Clean the LSU when you remove the particles of paper,
toner and dust inside the printer.
Open and close the left cover to clean the LSU inside of the
printer automatically.
1 Using the handle, completely open the left cover until it is at
right angles to the main frame and the toner cartridges are
ejected.
2 Close the left cover firmly.