HP Enterprise 500 manual Power subsystem, Power-on checks, Power-on troubleshooting overview

Table 3-1Troubleshooting flowchart (continued)

4	Open the Reports menu and print the		If accessories that are installed are not listed on the configuration
Information	configuration pages to verify that all the		page, remove the accessory and reinstall it.
	accessories are installed.
pages			After evaluating the configuration pages, see step 5.
	Are all the accessories installed?
	Yes	No
5	Does the print quality meet the customer's		Compare the images with the sample defects in the image defect
Image quality	requirements?		tables. See the images defects table in the product service manual.
	Yes	No	After the print quality is acceptable, see step 6.
6	Can the customer print successfully from the		Verify that all I/O cables are connected correctly and that a valid
Interface	host computer?		IP address is listed on the Jetdirect configuration page.
	Yes. This is the end of	No	If error messages display on the control panel when you try to print
	the troubleshooting		an event log, see the control panel message section of the service
	process.		manual.
			When the customer can print from the host computer, this is the
			end of the troubleshooting process.

Power subsystem

Power-on checks

The basic product functions should start up when the product is plugged into an electrical outlet and the power switch is pushed to the on position. If the product does not start, use the information in this section to isolate and solve the problem.

Power-on troubleshooting overview

Turn on the product power. If the control panel display remains blank, random patterns display, or asterisks remain on the control panel display, perform power-on checks to find the cause of the problem.

During normal operation, the main cooling fan begins to spin briefly after the product power is turned on. Place your hand over the holes in the left-side cover, near the formatter. If the fan is operating, you will feel air passing out of the product. You can also lean close to the product and hear the fan operating. You can also place your hand over the hole in the right-rear lower corner. If the fan is operating, you should feel air being drawn into the product. When this fan is operational, the DC side of the power supply is functioning correctly.

After the fan is operating, the main motor turns on (unless the right or front cover is open, a jam condition is sensed, or the paper-path sensors are damaged). You might be able to visually and audibly determine if the main motor is turned on.

If the fan and main motor are operating correctly, the next troubleshooting step is to isolate print engine, formatter, and control panel problems. Perform an engine test. If the formatter is damaged, it might interfere with the engine test. If the engine-test page does not print, try removing the formatter

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