Alignment & Adjustments
Service Manual
6-23
Samsung Electronics
[LSU Error]
Meaning: A problem has occurred in the Laser Scanning Unit (LSU).
Solution: Use TECH mode to test LSU. Replace the LSU
Invalid Cartridge or No Cartridge
Meaning: You have used an unauthorized cartridge.
Solution: You must use a Samsung approved cartridge.
[Line Error] (Only SCX-4720F)
Meaning: Your machine cannot connect with the remote machine or has lost contact because of a problem with the
phone line.
Solution: Try again. If the problem persists, wait an hour or so for the line to clear and try again. Or, turn the ECM
on.
Memory Full (Only SCX-4720F)
Meaning: The memory is full.
Solution: Delete any unnecessary documents (delayed transmission, broadcast or polling jobs) or retransmit after
more memory becomes available. This can also be caused when a large complex document with many
pages is being sent, try splitting the job into more than one operation.
[No Answer] (Only SCX-4720F)
Meaning: The remote fax machine has not answered after several redial attempts.
Solution: Try again. Verify the number to make sure a fax can be received.
No. Not Assigned (Only SCX-4720F)
Meaning: YThe speed dial location you tried to use has no number assigned to it.
Solution: Dial the number manually using the number keypad or assign the number.
No. Not Available (Only SCX-4720F)
Meaning: You have tried to delete the number for a delayed fax job.
Solution: Verify the number to be deleted and try again.
Or Delete the number after the delayed fax job is completed or deleted.
[No Paper] Add Paper
Meaning: The paper in the paper tray has run out.
Solution: Load paper in the paper tray.
Operation Not Assigned (Only SCX-4720F)
Meaning: You are performing an Add / Cancel operation, but there are no jobs waiting.
Solution: Check the display to see if there are any scheduled jobs. The display should indicate if any scheduled jobs
are in Standby mode, for example, Delay Fax.
[Paper Jam 0] Open/Close Door
Meaning: Paper has jammed in the feeding area of the paper tray.
Solution: Clear the jam.
[Paper Jam 2] Check Inside
Meaning: Paper has jammed in the paper exit area.
Solution: Clear the jam.
[Power Failure]
Meaning: The power has been turned off and then on and the printer’s memory has not been saved.
Solution: The printer’s memory was not saved due to a power failure. The job will need to be started over.
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