Kyocera Mita FS-3820N
This error code (7001) refers to a Toner
• Toner motor is overloaded. TNMOC is detected
by sampling every other
100 ms in 2 seconds since the main and toner
motors are activated following
the Replace toner Clean printer, message after
the "Toner low" is detected.
Recommended action is to change the
If this does not resolve the issue then the developer
should be changed.
If neither of those resolve the issue, then
likely the internal circuit board called the engine controller may be bad.
If this is the case the printer will need to
go to an Kyocera Repair Depot.
I hope this has been of assistance.
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