Oce 3121, Technical & Service Manual

Page: 591 / 908

510 TSM Océ 3121 Functional description of the 3-tray unit
Inputs to and Outputs from the Copier’s DC Controller
1
Inputs to the DC Control PBA
2
Outputs from the DC Controller PBA
Multitray inlet
sensor
PS19
Delivery
sensor 2
Delivery
sensor 3
PS18
PS17
DC controller PCB
+5V
INPD
∗
DPD2
∗
DPD3
∗
+5V
+5V
Tray position
sensor
PS16
J104-2
-7
-3
J104-2
-4
-3
J104-2
-5
-3
J104-2
-6
-3
+5V
TPD
When the tray is at the front, '1'.
(The light-blocking plate is blocking PS16.)
When copy paper exists over the sensor, '0'.
(The light-blocking plate is not blocking PS17.)
When copy paper exists over the sensor, '0'.
(The light-blocking plate is not blocking PS18.)
When copy paper exists over the sensor, '0'.
(The light-blocking plate is not blocking PS19.)
When the tray is at the front, ‘1’.
The vane is in front of the sensor.
When copy paper exist over the sensor,
‘0’.
The vane is not in front of the sensor
PS17.
When copy paper exist over the sensor,
‘0’.
The vane is not in front of the sensor
PS18.
When copy paper exist over the sensor,
‘0’.
The vane is not in front of the sensor
PS19.
DC control PBA
Sensor for
the tray
position
Delivery
sensor 2
Delivery
sensor 3
Sensor for
the 2-tray
entry PS19
DC controller PCB
+24V
+24V
+24V
Shift motor
Multitray feeding
motor
M11
M 9
SL 6
SL 8
SL2D
∗
SL3D
∗
Paper deflecting
plate 2 solenoid
Paper deflecting
plate 3 solenoid
SHMD
A
A
∗
B
B
∗
During operation, the signal line is '0'.
(SL6 turns ON when SL2D
∗
is '0'.)
During operation, the signal line is '0'.
(SL8 turns ON when SL3D
∗
is '0'.)
M9 is a stepping motor.
Changing the order of
drive pulses (A, A
∗
, B, B
∗
)
and frequency,
the revolution and the timing
of rotation are controlled.
During operation, the signal line is '1'.
(M11 turns ON when SHMD is '1'.)
J104-1
-11
-12
-13
-14
J104-8
-3
J104-1
-9
J104-1
-10
Feeding
motor
Shift motor
Solenoid SL6
for the paper
deflector 2
Solenoid SL8
for the paper
deflector 3
DC control PBA
M9 is a stepping motor.
The revolution, and the timing of the
rotation, are controlled by changing
the sequence of the drive pulses A,
A*, B and B*.
During operation, the signal line is ‘1’.
(M11 turns On when SHMD is ‘1’.)
During operation, the signal line is ‘0’.
(SL6 turns On when SL2D* is ‘0’.)
During operation, the signal line is ‘0’.
(SL8 turns On when SL3D* is ‘0’.)