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Samsung MultiXpress X7500LX

Error Codes List page 34

 All About this machine
  • Code: U3-4210
  • Description: Top door of scanner is open.
  • Causes: DSDF cover is open.
  • Remedy: 1) Open and close the DSDF cover. Check if the error message is disappeared.
    2) If the problem persists, check the cover open sensor. a) Open the DSDF cover. Remove 4 screws. b) Remove the cover and check if the sensor harness is connected correctly. If the sensor is defective, replace it.
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