Troubleshooting 1. When only the Amber LED is On: • The Printer has been switched Off from the Front Panel (after having pressed the On/Off but- ton). • The Power Supply Unit only delivers a 5 V “Standby”; power that is needed to restart the Printer after the Front Panel On/Off button is pressed (the Formatter/Main PCA will initiate the Printer to start). 2. When the Blue LED is On: Deliver standard “ATX” power for the Electronics Module PCAs (+12V, +5V, -5V, -12V, etc...). All the functions of the Electronics Module are fully operational (EWS, etc...). 3. When the Green LED is On: Deliver “analog” 24V and 42V to enable printing. The Printer monitors and reports different signals:
PSU fan issues, 24V and 42V delivery failures (specific System Error reported pointing to PSU failure). PSU Blue LED Status PSU Green LED Status Left LED (on Front Panel) Status Printer Status ON OFF Red (Front Panel Black) Standby (with Embedded Web Server up and running) ON OFF Green (flashing) Initializing ON ON Green Ready (but not printing) OFF ON Any Not possible ON ON Green Printing or preparing to print ON ON Red (Front Panel Black) Not possible Using the PCA LEDs to Troubleshoot In certain circumstances, the LEDs located on the Interconnect PCA and PrintMech PCA can help to troubleshoot the Printer.
The LEDs can either be ON or Off and using different combinations can indicate different problems. Interconnect PCA The following illustration shows the locations of the LEDs on the Interconnect PCA DS1: 24V DS4: VPOWER2 DS5: 5V DS3: 5Vsb Interconnect PCA 5V - Comes from the PSU after the fuse on Interconnect PCA. Used to power On Front Panel and some Interconnect Electronics. Should be ON at the same time as Blue Power Switch LED. 5Vsb - Comes from the PSU after the fuse on Interconnect PCA. Used to power On the Printer from the Front Panel. Should be ON at the same time as Blue or Amber Power Switch LED. 16 Chapter 1 Troubleshooting