Ricoh AC205 Service Manual - Page 168

SMPS(SWITCHING MODE POWER SUPPLY), AC Input, Rated Output Power, Power Consumption

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SMPS AND HVPS 6.4.2 SMPS(SWITCHING MODE POWER SUPPLY) SMPS is the power source for the entire system. It is mounted at the bottom of the machine and consists of the SMPS area, which supplies DC power to drive the system. SMPS also supplies power to the AC heater control area, which supplies the power to the fusing unit. The SMPS has four output channels (+5V, +24V, and 24VS). The SMPS supplies the following power types: • North America: 120V • Europe: 220V • China (and nations with unpredictable power sources): 220V 1. AC Input • Input rated voltage : AC 220V ~ 240V, AC 120V / AC 220V • 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 5.0A/2.5A (when the fusing lamp is off and input/output voltages are in range) 2. Rated Output Power No Item 1 Channel Name 2 Connector pin 3 Rated output 4 Maximum output current 5 Peak loading current 6 Ripple noise voltage 7 Maximum output power 8 Peak output power CH2 +5V Con 23 5V pin: 3, 4 GND pin 5-7 +5V and 5% (4.75 to 5.25V) 0.14A 0.14A 100mV 0.35W 0.7W CH3 +24V Con 23 24V pin: 11-13 GND pin 9, 10,18 +24V and 10% (21.6 to 26.4V) 2.0A 2.5A Under 500Mv 48W 60W Remark 1ms 1ms 3. Power Consumption No Item 1 Stand-by 2 Printing 3 Energy saver mode CH2 (+5V) 0.07A 0.14A 0.01A CH3 (+24V) 0.4A 2.0A 0.4A Remark Ave. 55W Ave. 350W Ave. 20W B273 6-14 SM

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SMPS AND HVPS
B273
6-14
SM
6.4.2 SMPS(SWITCHING MODE POWER SUPPLY)
SMPS is the power source for the entire system. It is mounted at the bottom of the
machine and consists of the SMPS area, which supplies DC power to drive the
system. SMPS also supplies power to the AC heater control area, which supplies
the power to the fusing unit. The SMPS has four output channels (+5V, +24V, and
24VS).
The SMPS supplies the following power types:
•
North America: 120V
•
Europe: 220V
•
China (and nations with unpredictable power sources): 220V
1. AC Input
•
Input rated voltage : AC 220V ~ 240V, AC 120V / AC 220V
•
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 5.0A/2.5A (when the fusing lamp is off and input/output
voltages are in range)
2. Rated Output Power
No
Item
CH2
CH3
Remark
1
Channel Name
+5V
+24V
2
Connector pin
Con 23
5V pin: 3, 4
GND pin 5-7
Con 23
24V pin: 11-13
GND pin 9, 10,18
3
Rated output
+5V and 5%
(4.75 to 5.25V)
+24V and 10%
(21.6 to 26.4V)
4
Maximum output current
0.14A
2.0A
5
Peak loading current
0.14A
2.5A
1ms
6
Ripple noise voltage
100mV
Under 500Mv
7
Maximum output power
0.35W
48W
8
Peak output power
0.7W
60W
1ms
3. Power Consumption
No
Item
CH2 (+5V)
CH3 (+24V)
Remark
1
Stand-by
0.07A
0.4A
Ave. 55W
2
Printing
0.14A
2.0A
Ave. 350W
3
Energy saver
mode
0.01A
0.4A
Ave. 20W