Fuji Xerox C400 can not scan colour. Code 102-319

[addoncopier]

Hi, Today suddenly my C400 can not do colour scanning...Only can do black and white scanning...what's going wrong..? the fault code is 102-319

[copytech200X]

102-319 Send with No ACK
Serial communication failure. Sending failure, ACK was not returned.
Procedure
Switch power off then on. Status code 116-325 is displayed temporarily, then 102-319 is displayed.

Y N
Status Code 102-319 is displayed.
Y N
Return to service call procedures.
Perform re-installation of the software

if yes go to 116-325 RAP