Samsung CLX-8640 series - Failed to Adjust the Color Registration; Failed to Adjust the OPC Feed Forward Control

4.Troubleshooting
►ErrorCode
S2–5111
S2–5112
S2–5120
S2–5131
S2–5132
S2–5133
S2–5135
S2–5136
S2–5161
S2–5164
►Errormessage
Failedtoadjustthecolorregistration
►Symptom
ACRerrorhasoccurred.
►Troubleshootingmethod
1)Execute“ACRcalibration”manually.
2)CheckiftheACRsensorisdefectiveandconnectorisconnectedproperly.
3)ChecktheimagedensityandthebeltoftheITBunit.
4)Iftheproblempersists,mainboard.
►ErrorCode
S2–5210
S2–5220
S2–5231
S2–5232
S2–5233
S2–5234
S2–5240
S2–5250
►Errormessage
FailedtoadjusttheOPCFeedforwardcontrol
►Symptom
OPCfeedforwardcontrolfailurehasoccurred.
►Troubleshootingmethod
1)ReplacetheITBunit.
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