Xerox DocuPrint 96MX manual HP9420 Host not communicating. See host for reason

HIP (HOST INTERFACE PROCESSOR) MESSAGES

HP9420	Host not communicating. See host for reason
	The HIP DIAGNOSTIC command was entered. The system failed
	Test 1: (see explanation for message HP9400) or Test 2: system was
	unable to send a command on OEMI and in turn read the printer
	status.
Action	1.	If Test 2 failed, diagnostics are terminated.
	2.	Inspect the 871-CM display (the “host” referred to in the
		message) to learn nature of the failure.
	3.	Contact Xerox Customer Service and give information
		appearing on the 871-CM display
HP9430 Host timed out in test 3. See host for reason
	HIP diagnostic failed.
Action	1.	Reenter the HIP DIAGNOSTIC command to retry the diagnostic
		test.

2.If the problem recurs, contact your systems specialist or Xerox Customer Service.

HP9431	Line no. n is open
	The HIP DIAGNOSTIC command was entered. The system failed
	Test 3 which verifies integrity of 8 parallel data lines. The line number
	indicated is shorted high.
Action	1.	Inspect the 871-CM display (the “host” referred to in the
		message) to learn the nature of the failure.
	2.	Contact Xerox Customer Service and give information
		appearing on the 871-CM display and in this message.

HP9432	Line no. n is shorted
	The HIP DIAGNOSTIC command was entered. The system failed
	Test 3 which verifies integrity of 8 parallel data lines. The line number
	indicated is shorted to ground.
Action	1.	Inspect the 871-CM display (the “host” referred to in the
		message) to learn the nature of the failure.
	2.	Contact Xerox Customer Service and give information
		appearing on the 871-CM display and in this message.

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