Toshiba 1550 Service Manual page 126

– When the toner density is low –
The toner amount in the developer material is less than the required level in comparison with
the iron powder (carrier).
Magnetic reluctance: Small
– When the toner density is high –
The toner amount in the developer material is more than the required level in comparison
with the iron powder (carrier).
Magnetic reluctance: Large
• DC voltage corresponding to toner density in the developer material = auto-toner output
VATS.
Mar. 1998 © TOSHIBA
detection output: Large
detection output: Small
10 - 13
Auto-toner output VATS: Large
auto-toner output V: Small
1550/1560 DEVELOPER