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e-STUDIO3511/4511 DEVELOPER UNIT 12 - 6 November 2003 © TOSHIBA TEC
12
12.5.3 Black auto-toner sensor circuit
(1) Functions of auto-toner circuit
• Detection of the toner density in the developer material
- density lowered → toner supplied
• Detection of the toner being empty in the toner cartridge
CPU
AN2
DICH1
LDCH1
CLKCH1
PA1
LCA301-1
ATSDET
ATSVR
ATS
7407
+
-
+
-
Black auto-toner
sensor
D/A converter
Fig. 12-503