Read Sharp DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man67) Technical Bulletin online
4. Installation
A. Installation of the developer cartridges
1) Open the front cover.
2) Turn the lock lever until it stops to release the lock, and
remove the waste toner box.
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
diagonally, it may be broken off. Be sure to pull it slowly
and straight.
After pulling 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.
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