3-38 Service Level TroubleshootingStartup (Level 0) DiagnosticsThe printer automatically performs startup diagnostics during the startup cycle whenpower is supplied or when the printer goes online. Startup diagnostics comprise thefollowing actions:1. Power off the printer.2. Perform CRC check of the firmware ROM, read external RAM.Note: Failure causes startup diagnostics to stop.3. EEPROM checkNote: Failure causes startup diagnostics to stop.4. Printer Status (Amber) LED is turned on.5. Check if paper is present.6. Return the knife to the home position.Note: Failure causes a fault condition.7. Check if printer Top Cover/Printer Door is closed.Note: Failure causes turning on the Printer Status (Amber) LED until the TopCover/Printer Door is closed.When the last step is complete, the Paper Feed button is enabled and the printer isready for normal operation. Information about the test is available in the communicationinterface through the commands.If the printer has not been turned on, or a new EEPROM has been installed, the defaultvalues for the printer functions (set in Level 1 Diagnostics) are loaded into the EEPROMduring startup diagnostics. For more information on the printer settings, refer to PrinterConfiguration (Level 1) on the facing page. If the EEPROM load has failed, the PrinterStatus LED is turned on.
