Iot-Ess Communication Failure 16 - Xerox DocuColor 2240 Service Manual

3-356 IOT-ESS Communication Failure 16

Controller received check code error (UART over-run error).
Procedure
Switch the power off then on. The problem continues.
Y N
Return to Service Call Procedures.
Reinstall the software. If the problem continues, check the MCU PWB connectors (P/J Loca-
tions, Figure 15). DC 3535 only: Replace the VSEL PWB
replace the MCU PWB (PL 13.1).
Status Indicator RAPs
3-356, 3-357
3-357 IOT-ESS Communication Failure 17
Controller received check code error (reception aborted after header received).
Procedure
Switch the power off then on. The problem continues.
Y
Reinstall the software. If the problem continues, check the MCU PWB connectors (P/J Loca-
(PL 13.1). If the problem persists, tions,
replace the MCU PWB
02/03
2-34
N
Return to Service Call Procedures.
Figure 15). DC 3535 only: Replace the VSEL PWB
(PL 13.1).
(PL 13.1). If the problem persists,
Initial issue
DC 3535/2240/1632