Question about Ricoh Aficio 450 Copier

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Have a ricoh aficio 450 and there is error code sc 623?

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1. With the machine turned off. Go to the back of the machine and disconnect the cable that goes to the paper deck.
2. Turn on machine.
3. Turn off machine.
4. Reconnect the cable.
5. Turn on machine.
6. If problem continues you need the BICU

Posted on Dec 24, 2008

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The BICU cannot communicate with the paper tray unit properly.
· Poor connection between the BICU board and the paper tray unit main board
· Paper tray unit main board defective
· BICU board defective
Inspect the cable that it connects the paper tray unit.

Posted on Dec 07, 2009

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Dear sir; Happy holiday, the error code you bring out the means " communication problem between BICU and paper tray unit, it may be can be reset,the procedure as follow;
1, press "clear mode"( the c in the diamond).
2, enter107 then press and hold down "stop/ clear" key
3, when you enter the sp mode turn power off 5 second turn back on could you tell me what's resolve coming out.
4, if the resolve coming out is negative, go behind the machine check the connector
5, please let me know the resolve.
HAVE A HAPPY HOLIDAY !!!

Posted on Dec 17, 2008

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