Ricoh M040 Service Training page 29

Do not turn off the main power of the machine
during firmware updating.
If you switch the power off, the engine board
and/or controller board may be damaged.
If power failed during the download, try again. If
you still cannot download the firmware, it may be
necessary to change the engine board and/or the
controller board.
Slide 29
.
Cautions - 1/2
29
MD-P1b / M040 / C311N
MD-P1c / M041 / C312DN