Samsung CLX-9201 Service Manual page 359

► Error Code
S2–4410
► Error message
Right door is open. Close it.
► Symptom
Front cover or Side cover is opened.
► Troubleshooting method
1) Close the side cover correctly.
2) Check if the cover open sensor connector is connected properly. Reconnect it.
3) If the sensor is defective, replace it.
(Refer to 3.3.31. Front Cover Open Switch.)
► Error Code
S2–5111 / S2–5112 / S2–5120 / S2–5131 / S2–5132 / S2–5133 / S2–5135 / S2–5136 / S2–5161 / S2–5164 / S2–5210 /
S2–5240
► Error message
Failed to adjust the color registration
► Symptom
ACR execution is failed.
► Troubleshooting method
1) Turn the machine off then on.
2) If the problem persists, check the followings.
• Check if the ACR sensor is contaminated or defective. Clean the ACR sensor or replace it.
• Remove and reinstall the ITB unit. If the problem persists, replace the ITB unit.
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4. Troubleshooting
4-176