While you wait for answers, we may have found some information which could help you.
Click here for Error Code 1620Maintance kit light?
Where can I get firmware for my Kyocera printer?
How do I fix error message J00 on Kyocera 1620copier?
kyocera model 1620 error c-06?
How can I fix my photocopier Kyocera FS 1018 MFP?
Kyocera error C4100?