4-2 Xerox Internal Use Only Phaser 6500/WorkCentre 6505 Service ManualGeneral TroubleshootingIntroductionThis chapter covers the System Startup, Power On Self Test (POST), ServiceDiagnostics, and troubleshooting procedures not associated with an error code orControl Panel error message. For troubleshooting problems associated with a errormessage, refer to “Error Messages and Codes” on page 3-1. Print-quality problemsare covered in “Print-Quality Troubleshooting” on page 5-1.Initial ActionsSome problems are easy to resolve. Use these steps in an attempt to quicklyisolate the problem.1. Turn Off the printer, wait 10 seconds, then turn On the printer. This oftensolves problems related to power transients, ESD, and software errors.2. If a message appears on the Control Panel, see “Error Message and CodeSummary” on page 3-6 for specific procedures related to error messages.3. Check the power cord. Is the power cord plugged into the printer and aproperly grounded electrical outlet? Is the power cord damaged?4. Check the electrical outlet. Is the outlet turned off by a switch or breaker?5. Does other electrical equipment plugged into the outlet operate?6. Are all options properly installed?Display ProblemsIf the Control Panel displays only diamonds or is blank:1. Turn Off the printer, wait 10 seconds, then turn On the printer.2. Self Test Messages should appear on the display. If not, see “Control PanelTroubleshooting” on page 4-66.3. When tests complete, “Ready to Print” should appear on the display.If the problem persists see “Control Panel Troubleshooting” on page 4-66, and “DCPower Supply Troubleshooting” on page 4-68.Printing ProblemsIf menu settings entered from the Control Panel have no effect, change or disableprint settings from the print driver, the print utilities, or the application.NoteSettings made in the application, print driver, or print utilities override settingsmade from the Control Panel.If a job did not print correct or incorrect characters were printed, check thefollowing:1. Check for “Ready” on the display before sending a print job.2. Check the loaded media.3. Check the print driver.4. Check the printer connections to Ethernet or USB.http://www.manuals4you.com