Development Bias - Gestetner A294 Service Manual

DEVELOPMENT

2.6.5 DEVELOPMENT BIAS

The charge/bias/grid power pack [A] applies the negative development bias to both
the lower sleeve roller and upper sleeve roller through the receptacles [B] and the
sleeve roller shafts [C].
⇒
The development bias (-550V) prevents toner from being attracted to the non-
image areas on the drum where there is residual voltage. In addition, the
development bias is applied to the lower portion of the developer housing to
prevent toner from being re-attracted back from the drum.
A294/A295
CÓPIA NÃO CONTROLADA
[A]
2-60
CÓPIA NÃO CONTROLADA
Rev. 03/2000
[B] [C]
A294D305.WMF
SM