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Samsung CLX-8540ND - Page 197

Samsung CLX-8540ND
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Troubleshooting
Service Manual
4-35
Samsung Electronics
Code
NVM Description
(GUI)
Default
Max
/ Min
Function Description
107-000 Transfer1 High
Voltage(THV) Yellow
65 100/50 * T1 Transfer current (Y,M,C,Bk-Pod) PWM Duty
* This is the high voltage to transfer the toner image on OPC to
the ITB.
* When perfoming the CTD or ACR, it is the same for tranfering
the compensating patch on ITB.
* Current(T1) = 0.1736 * PWM - 3.1603
* This value is the only initial setting of default PWM Duty for the
first transfer.
* At real printing, the value is applied by the Look-Up Table
considering the environment and life automatically.
107-010 Transfer1 High
Voltage(THV) Magenta
65 100/50
107-020 Transfer1 High
Voltage(THV) Cyan
65 100/50
107-030 Transfer1 High
Voltage(THV) Black (THV
Bias Control)
65 100/50
107-040 Transfer1 High
Voltage(THV) Low
Yellow
53 100/50 * T1 Protection current (Y,M,C,Bk-Pod) PWM Duty
* This is the high voltage to ensure the output stability of HVPS for
no-image area on OPC.
* Current(T1) = 0.1736 * PWM - 3.1603
* At real printing, the value is applied by the Look-Up Table
considering the environment and life automatically. It never
change.
107-050 Transfer1 High
Voltage(THV) Low
Magenta
53 100/50
107-060 Transfer1 High
Voltage(THV) Low Cyan
53 100/50
107-070 Transfer1 High
Voltage(THV) Low Black
53 100/50
107-080 Transfer2 High
Voltage(THV2)
140 160/65 * T2 transfer current (Simplex printing side) PWM Duty
* This is the high voltage to transfer the toner image on ITB to the
paper for second transfer.
* This is the second transfer high voltage for simplex printing side
that doesn't pass the fuser.
* Current(T2) = 0.2654 x PWM - 9.0191
* The value set on EDC manually is not applied to the real printing.
* At real printing, the value is applied by the Look-Up Table
considering the environment and life automatically.
107-090 Transfer2 High
Voltage(THV2) Duplex
80 160/65 * T2 transfer current (Duplex printing side) PWM Duty
* This is the high voltage to transfer the toner image on ITB to the
paper for second transfer.
* This is the second transfer high voltage for duplex printing side
that pass the fuser.
* Current(T2) = 0.2654 x PWM - 9.0191
107-100 PreTransfer1 Duty 74 100/50 * T1 transfer system Load recognition current PWM Duty
* This is the high voltage to recognize the total impedance of T1
transfer system that pass the T1 roller rubber, ITB, OPC.
* Current(T1) = 0.1736 * PWM - 3.1603
* The value set on EDC manually is not applied to the real printing.
* At real printing, the value is applied by the Look-Up Table
considering the environment and life automatically.

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