Xerox 4500 PS TR instruction manual Appendix B.3 Problem determination

Appendix Section

Xerox 4500 PS TR

Appendix B.3: Problem determination

∙What action do I take if a communication error occurs during the upgrade process?

If the microcode download fails while you are using the TCP/IP boot server, power the Xerox 4500 PS TR off and back on again.

If a baseblock checksum error occurs during microcode download, download via the centronics port is the only way to upgrade the microcode (below is shown LED status if a baseblock checksum error occurs):

Condition		LEDStatus
	LAN	SES	PRT
Baseblock checksum	ON	ON	ON
error (Micro-code	OFF	OFF	ON
download needed,
Centronics only)

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