Iot Bus Failure Rap - Xerox WorkCentre 5687 Series Service Manual

03-365 IOT Bus Failure RAP

03-365 The communications driver has failed.
NOTE: This fault code can occur when the driver fails because of system electrical noise.
Initial Actions
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord from the
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
• Switch off the machine, then switch on the machine, GP 14.
• Check the fault history file for other 03-xxx fault codes. If the 03-xxx fault codes occur ran-
domly, the cause may be due to electrical noise. Go to OF10 intermittent Failure RAP.
Procedure
NOTE: The IOT controller should clear an I2C bus fault indication after five seconds.
1. Ensure the P/Js on the IOT PWB, PL 1.10 Item 2 are correctly seated.
2. Check that there is continuity between the upper and lower registration guide. Ensure that
the screw that secures the upper and lower registration guides is tight, Figure 1.
3. Check that there is continuity between the halo guide and the registration guide. Raise
and lower the short paper path assembly, PL 10.15, several times to ensure that the con-
tinuity is consistent. If the continuity is inconsistent, perform the following:
• Examine the registration and halo guide bias contact for deformation or damage, PL
8.15 Item 23.
• Ensure the transfer / detack harness is routed correctly at the rear of the short paper
path, refer to REP 10.1.
4. This fault may be caused by a ground fault, perform 01A Ground Distribution RAP.
5. Reload the software, GP 4 Machine Software.
6. Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item
2.
Status Indicator RAPs
03-365
Registration guides
securing screw.
Figure 1 Component Location
August 2007
2-86
Upper registration
guide
Lower registration
guide
Halo guide
Registration and halo
guide bias contact
WorkCentre 5687 Family