
Service Manual
Product specification and feature
2-22
Samsung Electronics
- Rated Output Power
NO
Items
CH1
CH2
Remarks
1
CHANNEL
+5V
+24.0V
2
CONNECTOR PIN
CON 2
CON 2
5V PIN: 2
24V PIN: 7, 8
GND PIN: 3, 4
GND PIN: 5, 6
3
Rated Output
+5V 5% (4.75 5.25V)+24V 10% (21.6 26.4V)
4
Max. Output current
1.0 A
2.0 A
5
Peak Loading current
1.2 A
2.5 A
1ms
6
RIPPLE NOISE Voltage
150mVp-p or less
500mVp-p or less
7
Maximum output
5W
48W
8
Peak output
6.0W
60W
1ms
9
Protection for loading
Fuse Protection
Shutdown when output
shortage and overflowing
current flows 2.8A~6.0A
current
3) HVPS Board
The HVPS part takes the 24V and outputs the high voltage for THV/MHV/BIAS, and the outputted high voltage is
supplied to the toner, OPC cartridge, and transfer roller.
Transfer High Voltage (THV+)
- Input Voltage : 24 V DC
10%
- Out Voltage : Max +5.0KV
3
- Output Voltage Variation :
3 % below(Variation 21.6V 26.4V)
- Out Voltage Rising Time : 100 ms Max
- Out Voltage Falling Time : 100 ms Max
- Transfer Variation Voltage on Environment Variation : +400V ~ 5 KV
- Control Method on environment : THV-PWM ACTIVE, transfer Active signal, of environment sensing
voltage is input and get feed back current, and recalculate it to resistance.
- Control method on transfer output voltage : It is controlled by changing its duty of THVPWM Signal.
Charge Voltage (MHV)
- Input Voltage : 24 V DC
10%
- Out Voltage : -1.2KV ~ -1.8KV DC
3%
- Out Voltage Rising Time : 50 ms Max
- Out Voltage Falling Time : 50 ms Max
Summary of Contents for SCX-4500 Series
Page 56: ...Adjustment and Troubleshooting Service Manual 4 3 Samsung Electronics OPE Design ...
Page 60: ...Adjustment and Troubleshooting Service Manual 4 7 Samsung Electronics LED Display Interaction ...
Page 61: ...Service Manual Adjustment and Troubleshooting 4 8 Samsung Electronics LED Display Interaction ...
Page 62: ...Adjustment and Troubleshooting Service Manual 4 9 Samsung Electronics LED Display Interaction ...
Page 115: ...Samsung Electronics Service Manual Exploded Views Parts List 5 6 5 3 OPE Unit 0 1 2 3 4 5 ...