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Samsung CLX-8540ND - Page 196

Samsung CLX-8540ND
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Troubleshooting
Service Manual
4-34
Samsung Electronics
Code
NVM Description
(GUI)
Default
Max
/ Min
Function Description
104-060 Bypass Rubber Pad Life
Page Counter
0 100000
/0
* MP Tray Pick up roller Page Counter value
* When replacing a svc part, you can change the count to 0.
105-000 MHV DC Yellow 425 1000
/100
* This value is to set the DC component in the charge voltage for
charging the OPC surface.
* Default 425 PWM is approximately -706V
* The voltage changes +2.05v per +1 PWM.
* In case of NN, the surface of OPC is charged by approximately
-600V.
* This value is to check the normal state of HVPS,LSU.
* 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.
105-010 MHV DC Magenta 425 1000
/100
105-020 MHV DC Cyan 425 1000
/100
105-030 MHV DC Black (MHV
Bias Control)
425 1000
/100
105-040 MHV DC Low Yellow 440 1000
/100
* In case of OPC idling, this value is to make the lower charge
voltage on OPC surface.
* Default 440 PWM is approximately -736V that makes
approximately -100V charge voltage.
* The voltage changes +2.05v per +1 PWM.
* This value is to check the normal state of HVPS,LSU.
* 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.
105-050 MHV DC Low Magenta 440 1000
/100
105-060 MHV DC Low Cyan 440 1000
/100
105-070 MHV DC Low Black 440 1000
/100
105-080 MHV VPP Yellow 134 250/30 * This value is to set the AC component in the charge voltage for
charging the OPC surface.
* Default 134 PWM is approximately -2.28KVpp
* The voltage changes +13.5Vpp per +1 PWM.
* This value is to check the normal state of HVPS,LSU.
* 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.
105-090 MHV VPP Magenta 134 250/30
105-100 MHV VPP Cyan 134 250/30
105-110 MHV VPP Black 134 250/30
105-120 MHV AC Yellow 128 160/100 * This PWM value is to set +/- rate of AC component for charging
the OPC surface.
* Default 128 PWM is 50% Duty
* This value is to check the normal state of HVPS,LSU.
* 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.
105-130 MHV AC Magenta 128 160/100
105-140 MHV AC Cyan 128 160/100
105-150 MHV AC Black 128 160/100
106-000 Deve DC Yellow 152 200/90 * This PWM value is to set the develping DC that toner of magnetic
roll is developed on OPC.
* Default 152 PWM is approximately -500V.
* The voltage changes +4.0V per +1 PWM.
* This value is to check the normal state of HVPS,LSU.
* 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.
106-010 Deve DC Magenta 152 200/90
106-020 Deve DC Cyan 152 200/90
106-030 Deve DC Black (Deve
Bias Control)
152 200/90

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