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6 January 1990
4. CORONA
4.1 CHARGE CORONA WIRE AND GRID WIRE
REPLACEMENT
NOTE: 1) Handle new corona wires and grid wires by the ends only. Oil from
your hands will cause the wire to deteriorate rapidly, resulting in
image problems and/or short corona wire life.
2) Avoid bending the new wires. If the corona wire is bent sharply the
coating will be damaged. If grid wires are bent, uneven image
density may result.
1. Remove the drum.
2. Remove the ground
lead [A] and the
step screw [B] se-
curing the right end
of the charge co-
rona, and take off
the corona cover
[C].
3. Move the charge co-
rona unit slightly to
the right and then
take it out down-
ward through the
drum opening.
4. Remove the grid
wires.
5. Remove the right
and left endblock
covers and replace
the corona wire.
[C]
5-10
[B]
[A]
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