Service Call Tables
D014/D015/D078/D079 4-28 SM
SC432 C Potential sensor error 1: Vr K
SC433 C Potential sensor error 2: Vr M
SC434 C Potential sensor error 3: Vr C
SC435 C Potential sensor error 4: Vr Y
Vr > 200V. The residual voltage (Vr), the amount of voltage that
remains on the surface of the drum after the QL fires is greater than
200V.
Potential sensor dirty
Potential sensor defective
Charge roller defective
Charge power pack defective
OPC defective
SC436 D Potential sensor error: Vd K
SC437 D Potential sensor error: Vd M
SC438 D Potential sensor error: Vd C
SC439 D Potential sensor error: Vd Y
The VdHome reading, the first step of the process control
self-check, detected that the development potential of the
unexposed areas of the drum are not within the prescribed range
(-500 to -800)
Potential sensor dirty
Potential sensor defective
Charge roller defective
Charge power pack defective
OPC defective
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