HP CP4525DN Laser CC494A#ABA manual 2Troubleshooting flowchart, Power on

Troubleshooting flowchart

This flowchart highlights the general processes that you can follow to quickly isolate and solve product hardware problems.

Each row depicts a major troubleshooting step. A “yes” answer to a question allows you to proceed to the next major step. A “no” answer indicates that more testing is needed. Go to the appropriate section in this chapter, and follow the instructions there. After completing the instructions, go to the next major step in this troubleshooting flowchart.

Table 3-2Troubleshooting flowchart

1

Power on

2

Control panel messages

3

Event log

4

Information pages

5

Image quality

6 Interface

Is the product on and does a readable message display?

Yes No

Does the message Ready display on the control panel?

Yes No

Open the DIAGNOSTICS menu and print an event log to see the history of errors with this product.

Does the event log print?

Yes No

Open the INFORMATION menu and print the configuration pages to verify that all the accessories are installed.

Are all the accessories installed?

Yes No

Does the print quality meet the customer's requirements?

Yes No

Can the customer print successfully from the host computer?

Yes. This is the end of No the troubleshooting

process.

Follow the power-on troubleshooting checks. See Power subsystem on page 240.

After the control panel display is functional, see step 2.

If an error message displays, see Interpret control-panel messages on page 345.

After the errors have been corrected, go to step 3.

If the event log does not print, see Print an event log on page 376.

If paper jams inside the product, see Clear paper jams on page 383.

If error messages display on the control panel when you try to print an event log, see Interpret control-panel messages on page 345.

After successfully printing and evaluating the event log, see step 4.

If accessories that are installed are not listed on the configuration page, remove the accessory and reinstall it.

After evaluating the configuration pages, see step 5.

Compare the images with the sample defects in the image defect tables. See Image defects table on page 410.

After the print quality is acceptable, see step 6.

Verify that all I/O cables are connected correctly and that a valid IP address is listed on the Jetdirect configuration page.

If error messages display on the control panel, see Interpret control- panel messages on page 345.

When the customer can print from the host computer, this is the end of the troubleshooting process.

ENWW Troubleshooting process 239