Printer
Controller
B306
LED DISPLAY
SM 6-3 A265/A267
6.3.2 FATAL ERRORS
If the controller detected a fatal error during the power-on self-test, it uses two
LEDs to notify the cause of the error.
If one of the following fatal errors happens, the LED status changes as shown
(read from the left of the diagram to the right).
Flash ROM Error
Turn off the machine and turn it back on. If the controller detects the same error,
download new firmware from a IC card (refer to section 4.5.3). If the problem still
remains, replace the controller.
SDRAM Error
Turn off the machine and turn it back on. If the controller detects the same error,
replace the controller.
CPU Error
Turn off the machine and turn it back on. If the controller detects the same error,
replace the controller.
LED2
(Upper)
LED1
(Lower)
ON
OFF
B306T502.WMF
LED2
(Upper)
LED1
(Lower)
ON
OFF
B306T503.WMF
LED2
(Upper)
LED1
(Lower)
ON
OFF
B306T504.WMF
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