the error means that the Serial I/O control clock is not input into the MD PWB.
basicely there is nothing you can do yourself.
This is a problem for an engineer
(could be a poor connector if not then a PWB need to be replaced)
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I have recieved a failure code on my printer. the failure code that comes up is 341.347.02 I can not find out what this code means anywere in support. Can you please tell me what this code is.