Samsung CLX-8540ND - Page 44

Product Overview
Service Manual
2-33
Samsung Electronics
FUSER BIAS (CN4)SAWPLATE (CN3)
DEVE Y/M/C/K (CN2)
HVPS 3 (CN5)
HVPS_S (High Voltage Power Supply_Small) supplies High Voltage power to Imaging unit (Developer),
Fuser, Saw-plate (T2-Unit).
• Specication
Channel AC/DC No. Type Control
Rated
Load
Output
Output
Range
Load
Range
MHV
DC-
4
Constant-V PWM Duty
250 pF
-701 V 0 ~ -1800 V
0.1~3 mA
AC - PWM Duty 1.6 KVpp 1.0 ~ 3.2 Vpp
DEVE DC- 4 Constant-V PWM Duty 400 MΩ -525 V 0 ~ -800 V 0 ~ 30 uA
T1 DC+ 4 Constant-I PWM Duty 90 MΩ 10.4 uA 0 ~ 40 uA 0 ~ 3.5 KV
T2
DC+
1
Constant-I PWM Duty 100 MΩ 19 uA 0 ~ 50 uA 0 ~ 6.5 KV
DC- Constant-V Volume 20 MΩ -500 V - 0 ~ 20 uA
Saw Plate DC- 1 Constant-V PWM Duty NO -453 V 0 ~ -2.4 KV 0 ~ 40 uA
Fuser Bias
DC+
1 Constant-V
PWM Duty NO 506V 0 ~ 1.5 KV 0 ~ 20 uA
DC- Volume NO -830 V - 0 ~ 20 uA
• Constant current outputs in T1/T2 channels.
• Individual T1 channels for each color.
• Alternative DC +/- outputs between image & non-image periods in T2.
• AC + DC MHV Bias.
• Rated loads in all channels could be change according to the environmental conditions.
• All output channels can be adjusted by using volume control components.