Developing Unit - Printronix L5000 Series Maintenance Manual

Developing Unit

Connection
This unit is connected with the I/O board and high–voltage power supply unit as
shown in the following diagram.
Interface signals
The following 9 types of signals are sent and received between the I/O board or
high–voltage power supply unit and developing unit.
Signal
Toner supply roller drive (TSMO)
Toner density insufficient (TDSD)
Density analog output (TDSI)
Density control voltage (TDSC)
No toner detected (TESI)
Developing bias voltage (DB)
Drive power supply + (VDD)
Drive power supply – (GND)
Frame ground (FG)
6–24
I/O board Developing unit
(High–voltage unit)
Electrical and Wire Data