Samsung CLX-9201 Service Manual page 443

31) Image registration problem occurs after ACR (Auto Color Registration)
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Symptom :
Image registration problem occurs after ACR.
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Cause :
LSU (Laser Scanning Unit)
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Troubleshooting
1) Perform ACR.
(Home > Machine Setup > General Settings > Image Management > Auto Color Registration)
2) Print ACR Report.
(Service Mode > Information > Print Reports > Auto Color Registration)
Succeed or Failed for ACR: [1152] → Registration cannot be adjusted by ACR.
a) Check if Skew data of ACR Report is changed.
b) Check if OPC surface of Y/M/C is OK. → Check if it is scratched or torn.
c) Print and check separated Y/M/C color and see if it is OK.
d) Find "Succeeded or Failed for ACR" from ACR report.
- If the value is 1152 like the above report, ACR cannot be done. LSU need to be replaced.
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Succeeded or Failed for ACR: [0] → ACR was performed OK [OK]
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Succeeded or Failed for ACR: [1] → ACR was not performed OK [Fail]
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4. Troubleshooting
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