Fresa G024, Руководство по обслуживанию

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PAPER TRANSFER UNIT 31 March, 1999
2-42
2.5.4 BIAS
Normally, a constant current is applied to the transfer roller [A] axle.
A conductive bearing [B] allows an electrical connection between the bias terminal
[C] and the transfer roller axle.
The current varies with paper type, size, and thickness as well as humidity.
After the user clears a paper jam or closes the front cover, the transfer roller turns
and positive and negative currents are alternately applied. This removes any toner
that got stuck to the transfer roller during the jam.
To be more specific, a negative bias is applied to the transfer roller for two
revolutions. Then, a positive bias drives the transfer roller for 0.9 revolutions
followed by a negative bias for another 0.9 revolutions. The positive/negative 0.9-
revolution cycle is done 30 times.
G024D427.WMF
G024D157.WMF
[A]
[B]
[C]
[C]