Ricoh B291 Service Manual page 237

To Read SC740/SC741 from LED 2
1. Remove the upper rear cover.
2. Look at LED 2 and observe the number of flashes and the lengths of the
intervals between flashes.
LED ON
LED OFF
2sec
START
What You See
500 ms ON, 500 ms OFF
2 s ON, 1 s OFF
Example: 1-4-2
300ms ON, 500ms OFF
1
300ms ON, 200ms OFF (Repeats 3 times), 300ms ON, 500ms OFF (break)
4
300 ms ON, 200ms OFF, 300 ms ON, 500ms OFF (break)
2
Returns to START and repeats (2 s ON, 1 s OFF, then 1-4-2)
SM
CÓPIA NÃO CONTROLADA
ON: 300ms OFF: 200ms
1sec
Break: 500ms
1 4
What It Means
Finisher operating normally
START
The numbers refer to the flashes and intervals in the
illustration above.
4-15
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
Break: 500ms Break: 500ms
2
B291/B295/B296/B297
Repeat
B195T901.WMF