HP CP6015dn Service Manual - Page 387
Power subsystem, Power-on checks, Power-on troubleshooting overview
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Table 7-2 Troubleshooting flowchart 1 Power on Is the product on and does a readable message display? Yes No Follow the power-on troubleshooting checks. See Power-on checks on page 345. After the control panel display is functional, go to step 2. 2 Control panel messages Does the message READY display on the control panel? Yes No If an error message displays, see Control-panel messages on page 357. After the errors have been corrected, go to step 3. 3 Event log 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 If the event log does not print, see Print an event log on page 422. If paper jams inside the product, see Jams on page 428. If error messages display on the control panel when you try to print an event log, see Control-panel messages on page 357. After successfully printing and evaluating the event log, go to step 4. 4 Information pages Open the INFORMATION menu and print the configuration pages to verify that all of the accessories are installed. Are all of the accessories installed? Yes No If accessories that are installed are not listed on the configuration page, remove the accessory and reinstall it. For more information about optional output devices, see Output accessories and intermediate paper-transfer unit (IPTU) on page 579. After evaluating the configuration pages, go to step 5. 5 Image quality Does the print quality meet the customer's requirements? Yes No Compare the images with the sample defects in the image defect tables. See Image-quality issues on page 487. After the print quality is acceptable, go to step 6. 6 Interface Can the customer print successfully from the Verify that all I/O cables are connected correctly and that a valid host computer? IP address is listed on the Jetdirect configuration page. Yes. This is the end of No the troubleshooting process. See HP embedded Jetdirect page on page 350. If error messages display on the control panel, see Control-panel messages on page 357. 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 as soon as 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 locate the cause of the problem. ENWW Troubleshooting process 345