User`s guide

Changing Cartridges
4-9
Maintaining Your Printer Chapter 4
14. Once the toner cartridge has
been installed, secure the
drum unit into place by
applying pressure at its top
where the “Press” label is
affixed. The drum unit will
lock into place when it has
been correctly inserted into
the printer.
Note
15. Gently close the front cover.
Do not slam the front cover
to avoid causing damage to
the printer.
16. Make sure that the front
cover is completely closed.
You will hear the sound of the
printer operating.
• Before shutting the printer’s exterior cover, make sure that the drum
unit is securely installed by applying pressure at its top where the
“Press” label is affixed.
Drum unit
Front
cover
OK(LOCKED) NG(UNLOCKED)
Front cover
lock release lever