KIP 9000 Service Manual page 512

7. 3 Measures against Image Defects
7. 3. 1 Standard settings of image process items
The following list shows standard values of voltage and current supplied to each unit that is related
with image creation. When any image defect occurs, check if the following standard values are
satisfied on each unit.
Item
Voltage for Grid Plate -XV (Not constant)
(The Surface Potential becomes about -650V when Auto SP Control is set to OFF.)
Current for Image -2.0 +/-0.05mA
Corona Wire
Current for Transfer 1.4 +/-0.02mA
Corona
DC Component for -250 +/-3V : Plain paper
Separation Corona -300 +/-3V : Tracing
Developer Bias Developer Roller
(Negative Bias)
Toner Supply Roller
Regulation Roller (Center)
Regulation Roller (Both sides)
-10 +/-3V : Film
Standard
10.2mm
15.0mm
14.0mm
-YV against Ground (Not constant)
(It becomes about -250V +/-3V when Auto Density
Control is set to OFF.)
-350 +/-3V against Developer Roller voltage (-YV)
-100 +/-3V against Developer Roller voltage (-YV)
+365 +/-3V against Developer Roller voltage (-YV)
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