DX-C310, DX-C311, DX-C400, DX-C401 (serv.man6). Installation Manual - Sharp Copying Equipment Service Manual (repair manual). Page 8

MX-C401  MX-C310/MX-C311/MX-C380/MX-C381/MX-C400/MX-C401 (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.