Ricoh Aficio SP 5100N, Service Manual

Page: 151 / 175

Engine Hardware Specifications
SM 6-13 G186
Det
ailed
Section
Des
cription
s
SMPS (Switching Mode Power Supply)
The SMPS is the power source of the 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 machine.
It consists of the AMPS part, which supplies the DC power for driving the system, and the
AC heater control part, which supplies the power to the fuser. SMPS has two output
channels. Which are 3.3V and +24V.
ƒ AC Input
- Input Rated Voltage: AC 220V to 240V AC 120V / AC 220V (EXP version)
- Input Voltage fluctuating range: AC 198V to 264V AC 90V to 135V / AC 198V to 264V
(EXP version)
- Rated Frequency: 50/60 Hz
- Frequency fluctuation range: 47 to 63 Hz
- Input Current: Under 4.0Arms / 2.0Arms (But, the status when the lamp is off or rated
voltage is inputted/ outputted.)
ƒ Rated Output Power
NO ITEM CH1 CH2
1 CHANNEL NAME +5 V +24 V1 and +24 V2
2 CONNECTOR PIN
CON 21
5 V PIN: 12, 14, 16, 18
GND PIN: 20, 22, 24
CON 21
24 V PIN: 2, 4, 6, 8
GND PIN: 26, 27, 28
3 Rated Output
+5 V ±5%
(+4.75 V to +5.25 V)
+24.0 V ±5%
(+21.6 V to +26.4 V)
4 Max. Output Current 4.0 A 7.5 A
5 Peak Loading Current 4.4 A 8.0 A
6 ROPPLE NOISE Voltage Under 100 mVp-P Under 100 mVp-P
7 Maximum output 16.0 W 127.2 W
8 Peak output 20.0 W 180.0 W
9
Protection for loading
shortage and overflowing
current
- -