dear sir
could you please help me i have a photocopier machine kyocera model km 1620 error showing display c-06
how to resolve it ?

MAHBUB, January 2016

You could always do a Google search for, say, "kyocera km 1620 error c-06"

It took all of 60 seconds to find these:

http://www.fixya.com/support/t381897-copystar_kyocera_1620_error_code_c_6

http://www.howtomendit.com/answers.php?id=64675

There's more out there

XXX, January 2016