Gestetner A294, Service Manual

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DRUM UNIT
SM 2-53 A294/A295
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2.5.7 OTHERS
Air Flow Around the Drum
The drum cooling fan [A] provides air flow into the drum to cool the drum and the
charge corona unit to prevent uneven build-up of negative ions that can cause
uneven drum surface charge. The exhaust fan [B] located above the fusing unit
causes air to flow out of the machine.
An ozone filter [C] absorbs the ozone around the drum.
To keep the temperature inside the machine constant, the drum cooling fan and
the exhaust fan turn slowly during stand-by, and turn quickly during copying.
To prevent foreign matter from entering the copier inside, there is a dust protection
filter in the entrance [D] of the duct. Another dust filter [E] prevents dust from
reaching the ozone filter.
A294D208.WMF
[B]
[D]
[A]
[C]
[E]
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA