HP Designjet 5000 Service Manual - Page 98

Service Tests and Utilities Introduction This chapter explains how to use the built-in Service Tests and Service Utilities and what to do if any of the Service Tests fail. If possible, always perform a Service Test on the component that you are about to replace, just to make sure that is the component that has failed. If the test on that component passes, there is no need to replace it. Phone Support PHONE SUPPORT In certain circumstances, a Call Agent can try and troubleshoot the Printer by requesting the Customer to perform a Service Test or Utility via the phone. Using this process, it can be determined whether the Printer requires any on-site maintenance. In Phone Support the user will have access to a limited number of Service Tests or Utilities. NOTE Diagnostics - Self Test Initialization Sequences Whenever the Printer is switched ON, it automatically performs a series of internal self tests and mechanical initialization sequences. If any of the parts fail, an error code will appear. Below is a description of the initialization sequence, describing front panel messages and the sequence of the Print Quality LEDs, the error messages and error codes that may appear, and the corrective action. Because of the speed at which the initialization sequence is performed, some of the steps described in the intialization process may not be visible unless they are interrupted by an error code. NOTE Before troubleshooting error codes try the following: n Check that the BootROM DIMM, the DRAM DIMM's and the Hard Disk Drive are correctly installed. n Try powering the Printer Off and On to see if the error code disappears. 4-2 HP DesignJet 5000 Series Printers Service Manual