Toshiba e-STUDIO520 Service Handbook page 266

[ 3 ] Connection
(1) Connection for main charger measurement
( + ) : Rail for the main charger
(-) : Ground to the machine frame
(2) Connection for developer bias measurement
e-STUDIO520/523/600/603/720/723/850/853
ADJUSTMENT
Fig. 3-24
( + ) : Shaft of the upper developer sleeve
(-) : Ground to the machine frame
Fig. 3-25
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