Ricoh G035 Service Manual page 291

LEDs
Location
Four LEDs (LED2 to LED5) are located near SW2 on the printer controller. They
indicate the progress of the self test, and errors and status conditions.
LED Code Table
Self Diagnostic
The following LED table is for the self diagnostic function. When an error occurs
during the self diagnostic test, all four LEDs blink then indicate the error as shown
in the following table.
e.g.) RAM error:
All LEDs on (1 s) → off (1 s) → on (1 s) → off (1 s) → LED4 on (5 s) → from the
beginning.
LEDs
LED2 LED3
0 0
0 0
0 0
0 1
0 1
NOTE: 1) SC2000 is also displayed.
2) SC2002 is also displayed.
SM
T B 2
S W 2
LED4 LED5
0 1 ROM error
1 0 RAM (resident, SIMM) error:
1 1 NVRAM error:
0 1 Fatal error
1 0 Debug trap error:
7-21
SERVICE CALL CONDITIONS
G035T500.WMF
1 = LED is lit, 0 = LED is off
Description
NOTE 1)
NOTE 1)
NOTE 2)
G035