MX-B381/B401 MX-B381/B401 (MAIN UNIT) 1 – 4
3)
Turn the lock lever to the horizontal position to release the
lock, and open the drum positioning plate unit.
4)
Shake the developer cartridge 5 - 6 times horizontally, and
remove the protection material from the developer cartridge.
Insert the developer cartridge straight and horizontally until it
locks.
NOTE: When handling the developer cartridge, do not touch the
magnet roller section and the shutter section.
5)
While pressing the developer cartridge, pull out the heat seal
straight.
NOTE: If the heat seal is pulled out with a strong force or diago-
nally, it may be broken off. Be sure to pull it slowly and
straight.
After puling out the heat seal completely, check to confirm
that there is a red mark at the edge of the heat seal.
If there is no red mark, it means that the heat seal has been
broken. In such a case, the developer cartridge must be
replaced with a new one.
6)
Close the lock cover of the developer cartridge.
7)
Close the drum positioning plate unit, and put the lock lever
upright to lock.
