Samsung ML-1615 - Manual (Page 52)

M AINTAINING Y OUR P RINTER
4.8
4
Note: To prevent damage to the toner cartridge, do not expose it
to light for more than few minute. Cover it with a piece of paper, if
necessary. Also, do not touch the black transfer roller inside the
printer.
5 Locate the long strip of glass (LSU) inside the top of the
cartridge compartment, and gently swab the glass to see if
dirt turns the white cotton black.
6
Reinsert the toner cartridge and close the cover. Make sure
that the cover is securely closed. If it is not firmly closed,
printing errors may occur when you print.
7
Plug in the power cord, and turn the printer on.