Oce 3121 Technical & Service Manual page 665

Outputs from the Tray Control PBA (2/2)
Paper deflecting plate 1
SL1
drive solenoid
Paper deflecting plate 2
SL2
drive solenoid
Inlet roller roll releasing
SL3
solenoid
Paper on Tray
indication
Communication with the copier
The sorter communicates with the copier in IPC communication mode, using
a communication IC.
As shown, the communication IC (Q11) on the Multitray's tray controller PCB
and the copier's communication IC exchange status signals and data, and such
exchanges are controlled by the microprocessor of each machine.
IPC communication uses communication ICs, freeing the copier's microproc-
essor from some work loads.
If the self diagnosis function becomes activated because of a com-
Warning:
munication error, turn off the copier's power supply, detach the Multitray, and
then turn on the copier's power supply. This way, the copier may be used for
making copies.
ed.1
Tray controller PCB
24V
J11-2
-1
SL1D* When '0', the solenoid turns ON.
24V
J11-4
-3
SL2D* When '0', the solenoid turns ON.
24V
J6-1
-2
When '0', the solenoid turns ON.
SL3D*
TRIND*
J15-1
-2
* : Negative logic.
: Multi-Output Tray 12-B2 only.
When '0', the LED turns ON (paper
on tray).
21 Sorter 515