Printronix L5000 Series Maintenance Manual page 266

Toner supply clutch circuit
The toner supply clutch is driven by the following circuit, based on the output signal
of the toner density sensor (TDSD), whose input is the TSM signal created by the
gate array.
Signal pin assignments
Interface signals are assigned to the developing unit and I/O board connectors
(CN26) pins.
Developing unit side connector
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
6–28
Signal
GND
TDSI
TDSC
GND
TSMO
FG
VDD (S24V)
TDSD
TESI
VDD (S24V)
VDD (S24V)
DB
I/O board side connector (CN26)
Pin No. Signal
1 SG
2 TDSC
3 SG
4 TSMO
5 P24V
6 TDSD
7 TESI
8 S24V
9 S24V
Electrical and Wire Data