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PrintCopy .infohttps://printcopy.info > code=SC390
Code: SC390; Description: TD sensor error 1. The TD sensor outputs less than 0.5V, 20 s after the TD sensor initial setting has been performed.
Missing: cod ' Must include: cod
Fixyahttps://www.fixya.com > ... > Ricoh
The closest thing is the sc390 code, which means either the toner density sensor or the developer has gone bad, and typically replacing the PCU can fix that ...
Copytechnethttps://www.copytechnet.com > 56632-sc-390-a
Sep 24, 2011 - I've got an Aficio 1018 that's generating sc390 after every 10 copies. I recently fitted new drum, cleaning blade and developer and changed ...
Missing: cod ' Must include: cod
TD sensor defective
TD sensor not connected or disconnected damage
Poor connection between the TD sensor and IO board
IO board defective
Toner supply defective
SC 390 on an Aficio 1018 will most likely be a bad TD (toner density) sensor, if you've already replaced the drum and developer. (One thing to check quickly though is to pull the PCU out and reinstall it, just to make sure that connection isn't the problem.)
You can either replace the TD sensor by itself, or replace the DV unit (which probably won't be much more expensive). But either way, you'll need to install new developer when you replace the parts.
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