Ricoh D072 Service Manual page 203

Code Cause
Operation panel
E42
program error*
Controller program
E44
error*
E50 Authentication error
*You need to reinstall the program.
If the firmware update program is interrupted (for example, by a power failure), keep the SD
card inserted and turn the mains switch off and on. The firmware update program restarts.
If you do not do so, the message "Reboot after Card insert" is displayed when you turn the
main switch on.
SM
Using SP Mode (F/SPF: D068/D069)
Necessary Action
Store the correct data in the SD card.
Replace the operation panel board.
Store the correct data in the SD card.
Replace the controller board.
Store the correct data in the SD card.
6-11 D067/D068/D069/D072