Ricoh Aficio 450

[Wullie1]

I have a AF450 with the add toner light staying on.
I have located the fault to the main board.

Question: Can this symptom be cleared from the main board.

Any help would be appreciated.

[blackcat4866]

There are several simple things to check first:

1) The toner hopper may be clogged.
2) The toner motor may be shorted, blowing IC122 on the IOB. Replace the toner motor and IOB as a set (see TSB A680-035)
3) The right doorswitch bracket may be mounted incorrectly (and does not display "Close Doors/Covers").
4) Check to see if SP5-957 is set correctly. See (TSB232-032)

Courtesy of Goose's.

[Wullie1]

Thanks for your reply.

I changed the IOB board and the toner motor assy., ...toner light still on.
I replaced the main board, problem solved on customers machine.
Now I have a main board that keeps the toner light on.
I was hoping to put the faulty main board back into another AF450 and possibly reset it to, toner light off and then have a spare working main board.

[jeffreyozz]

replace the main board nvram.

[The Real JB]

If replacing the NVRAM did not fix the issue, or if it did, please let the community know.