11-40 Phaser 7750 Printer Service Manual
Stacker Tray Control
UP
DOWN
STACK HEIGHT
SENSOR PL17.6
3
1
2
STACK HEIGHT
SENSOR PL17.6
3
1
2
DOUBLE
PLUG
25
DOUBLE
PLUG
22
3
3
2
12.11B
12.11B
DOUBLE
PLUG
DOUBLE
PLUG
43
1
6
13
1
3
DOUBLE
PLUG
13
1
3
12.9
12.10A STACKER TRAY CONTROL (1 OF 2)
FINISHER
PWB
PL17.13
B6
B4
B3
B1
+5VDC
+5VDC
DC COM
DC COM
J850
GRY
GRY
VIO
GRY
VIO
VIO
GRY
VIO
J871B J871A
J870B J870A
J868
J869
EJECTED SET
J869
YEL
J871A
EJECTED SET
J868
J870A
YEL YEL
YEL
J870B
J850
DC330 [12-201]
STACK HEIGHT SENSOR
BLOCKED (H) +5VDC
DC330 [12-200]
STACK PAPER SENSOR
PAPER SENSED (H) +5VDC
J871B
B5
B2
+5VDC
+5VDC
FINISHER PWB
PL17.13
STACK HEIGHT
SENSOR
SENSED SIGNAL
STACK PAPER
SENSOR
SENSED SIGNAL
STACK HEIGHT
SENSOR
STACK PAPER
SENSOR
STACKER TRAY
DRIVE
STACKER
MOTOR
PL17.11
J889
P889
MOT
J847
ORN
BLU
DC330 [12-050]
STACKER MOTOR
UP (H) +24VDC
DC330 [12-051]
STACKER MOTOR
DOWN (H) +24VDC
11
12
DC COM
RT3
t9
FINISHER PWB
PL17.13
INTLK ON
+24VDC
1
1
2
3
When an overcurrrent flows, the thermistor has the
internal resistance increase to protect the circuit.
NOTES: Stack Height Sensor Detection
H: blocks light (The detected level is higher than the reference.)
L: receives light (The detected level is lower than the reference.)
When H changes to L, the stack has reached the reference height.
Virtual Line
7750-336
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