16 Chapter 1 Troubleshooting
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).
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
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.
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)
ON ON Green Printing or preparing to print
OFF ON Any Not possible
ON ON Red (Front Panel Black) Not possible
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