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1 Printer POR Turn the printer off and on several times. If Error Code 900 continues to display, go to step 2.
2 System board Make sure the system board is properly seated in connector J7 on the interconnect board. Turn the machine off and on several times, waiting a few minutes between power on and power off. If Error Code 900 continues to display, go to step 3.
3 Factory defaults Restore factory defaults. See “Restore EP Factory Defaults” on page 3-18. This resets the non-critical areas of the user NVRAM. If Error Code 900 continues to display, go to step 4.
4 Sub error codes With Error Code 900 displayed, press Select and Return. Record the complete list of Sub Error Codes on the display. Check the “Base printer sub error codes” on page 2-6. If none of the Sub Error Codes are listed, then call your next level of support.
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