Development Bias - Gestetner B130 Service Manual

DEVELOPMENT

6.16.2 DEVELOPMENT BIAS

Black areas of the latent image on the drum are at low negative charge (about -140
± 50 V), with white areas at high negative charge (about –900 V).
To attract negatively charged toner to black areas, the high voltage supply board [A]
applies a (default) bias of –600 V to the development roller [B]. The bias voltage can
be adjusted with SP2-201-1.
B129 Series/B044 Series
CÓPIA NÃO CONTROLADA
[B]
6-38
CÓPIA NÃO CONTROLADA
[A]
B046D309.WMF
SM