Main Wiring Diagram (Continued) - Xerox Phaser 8400 Service Manual

Main Wiring Diagram (Continued)

J620 J480
Power Control
4
4
ECB
J820
2
+/-50 V
+/-12 V unreg
+3.3 V
14
J790
16 4
J400
generates
+/- 12 V reg.
+5 V
34
7
J390
Printer ambient
temperature
2
J280
J800
10
J1
2 J840 J910
J870
2
J250
I/O ECB
3
2
J860
10 3
J400
3
+50 V
8
J680
+3.3 V
3
J110
10
J220
6 5
J600 J610
30 connector
3
JDC1
Power J3AC
X- axis motor
Supply
7
ECB
Drum fan J2AC
AC
generates:
Y axis pos encoder
+/-50 V
ECB
+/-12 V unreg
4
+3.3 V
J4AC
J1AC
Process motor
5
with encoder
Y- axis motor
Pre-heat
ECB
Inkload ECB
J2
Deskew entry
Heaters (4)
sense opto
Ink out opto
Ink low opto
J860
Door open opto
Thermistor (4)
5
Main tray paper height opto Control Panel
ECB
Main tray paper opto
generates:
+5 V
Waste tray opto
LCD Display
J600
Process home (optional)
10
MPT ECB
Width sense var. resistor
Media present sense opto
NOTE:
All items connected with RED
carry line voltage.
Printhead
AC Resv. heaters (2)
AC Jetstack heaters (2)
Drum Heater
Series/parallel heater
3
J3
2
2
J2
Relay ECB J1
4
2
J0720 Paper preheater
2
J0670 Preheat temp therm
3
J0660
Preheat sense opto
2
J190
Top door sense switch
2
J110
Front door sense switch
NOTE:
The numbers shown at the circuit board
perimeters are for the actual connectors.
Some have extra n.c. pins added to prevent
misplugging errors.
I/O color coding
Black = input
Magenta = output
Red = temp
s8400-197
10-3