1.6. POWER DISTRIBUTION
1.6.1. Distribution Diagram
The PSU su24V, +24V(SW), +12V, and
±
5V dc power to the FCU.
The +5V Power Board gen5VE from the +24V suply. The dc supplies
are used as follows.
+24V
This is normally on when the main switch is on.
+5VE
This is used for the document sensor, operation panel, and NCU. This is
supplied even if the machine is in power saver mode.
+12V
This supplies the LED Array in the CIS.
-5V
This is used for the image sensor.
+5V
This is normally on when the main switch on.
+12VP
This is supplied the to Flash ROM and the optional IC card.
+5VD
This supplies back up power for the system RAM and the optional IC card. A
lithium battery is used to ge5VD.
+24V(SW)
This is interrupted if the interlock switch opens.
MCB
FCU
LDDR
Square
Mirror Motor
Toner End
Sensor
Fusing Fan
Paper
Pick-up
Solenoid
Thermistor
High
Voltage
Paper Supply
Optional
Paper
Feed Unit
Paper
Pick-up
Solenoid
+24V
(SW)
Document
Pick-up
Solenoid
5V
Power Board
PSU
Scanner
Sensor
Board
CIS
Sensor
LED Array
+12V
Fusing
Lamp
Thermostat
Main Switch
AC Main Power
+24V
+24V
Tx Motor
+5V
+5V
+24V(SW)
+5V
+24V(SW)
+24V(SW)
+5V
Main Motor
+24V(SW)
+24V(SW)
+24V(SW)
+5V
+5VE
+5V
+5V
-5V
+12V
NCU
Option
Panel
IC Card
+5V
-5V
+12V
+24V(SW)
+24V(SW)
+24V
+5VE
+5VE
+5V
+5V
+5VD
+12VD
+24V(SW)
Interlock
Switch
+5V
+24V(SW)
Power
Board
+5VD
+
-
+5VE
+24V
H528v510.wmf
OVERALL MACHINE INFORMATION
July 24th, 1996
POWER DISTRIBUTION
1-14