Chris1972

asked Feb 11, 2019 at 3:46am
Unknown Printer

OKI ES3640 showing error 380

Hi everyone,

I'm having an ES3640pro showing the famous error 380. I managed to find (and follow) the OKI troubleshooting & maintenance guide and took parts of the printer apart, following the OKI disassembly guide. The MPT and the registration unit are for sure free of any pieces of paper. It still claims error 380. The Service Menu --> Switch Scan Test --> Paper Route PU said H H H H before I took it apart and says now H L H H - I'm not sure whether this is good or bad. I feel I have not done anything wrong in putting it back together.

What keeps my mind spinning is that the MPT paper tray is not being lowered anymore to accept paper (this is since the error 380 first appeared). This may be due to the error 380 or not.

I would appreciate any ideas ...


Thank you! cb