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Replacing the Development Unit
If "Replace Black Dev. Unit(TypeD)"
appears on the panel display, replace
the black Development Unit.
Replace Black
Dev. Unit(TypeD)
If "Replace Color Dev. Unit(TypeB)"
appears on the panel display, replace
the three color (CMY) Development
Units.
Replace Color
Dev. Unit(TypeB)
Note
❒ A dustproof filter is attached to the
black Development Unit. When re-
placing the black Development
Unit, also replace the dustproof fil-
ter. See p.24 "Replacing the Dust-
proof Filter".
❒ When replacing the black Devel-
opment Unit, clean the registration
roller. See p.32 "Cleaning the Reg-
istration Roller".
A A A A
Turn off the power switch and
unplug the power cable.
B B B B
Open the front cover slowly by
pulling down from the two areas
on the left and right.
C C C C
Take out the green screwdriver.
Use this screwdriver for all attach-
ment and detachment of screws.
D D D D
Turn the light brown lever coun-
terclockwise.
E E E E
Loosen two screws that are fasten-
ing the inner cover using provid-
ed screwdriver.
You cannot remove these two
ZDJH007J
screws.
Replacing the Development Unit
ZDJH013J
ZDJH014E
ZDJH015J
1
15
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