Service Manual
Circuit Diagram
11-18
11.7.2 SMPS (Switching Mode Power Supply)
It is the power source of entire system. It is assembled by an independent module, so it is possible to use for
common use. It is mounted at the bottom of the set.
It is consisted of the SMPS part, which supplies the DC power for driving the system, and the AC heater control
part, which supplies the power to fuser. SMPS has two output channels. Which are +5V and +24V.
• AC Input
> Input Rated Voltage : AC 220V ~ 240V AC 120V / AC 220V(EXP version)
> Input Voltage fluctuating range : AC 198V ~ 264V AC 90V ~ 135V / AC 198V ~ 264V
> Rated Frequency : 50/60 Hz
> Frequency Fluctuating range : 47 ~ 63 Hz
> Input Current : Under 5.0Arms / 2.5Arms (But, the status when lamp is off or rated voltage is
inputted/outputted )
• Rated Output Power
NO ITEM
CH2
CH3
Remark
1 CHANNEL NAME
+5V
+24.0V
2
CONNECTOR PIN
CON 3
CON 3
5V PIN: 8
24V PIN:11,12,13
GND PIN: 7
GND PIN:9,10
3
Rated Output
+5V & 5%
+24V & 10%
(4.75 % 5.25V)
(21.6 % 26.4V)
4
Max. Output voltage
0.14 A
2.0 A
5
Peak Loading voltage
0.14 A
2.5 A
1ms
6 RIPPLE
NOISE
100mVp-p
Under
500mVp-p
Voltage
7 Maximum
output 0.35W
48W
8 Peak
output
0.7W
60W
1ms
9
Protection for loading
-
shortage and
overflowing current
Содержание 1600n - Multifunction Laser Printer B/W
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