Question about Ricoh Aficio AP3800C Laser Printer

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Sc670 errormessage Can you tell me how to find the BCU board. I have an old 3800c that I have taken some boards out of before trashed it. I have been told that it is probably the BCU board that is bad but I am not sure where it is or what it looks like. Thanks BobJBoffset

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  • Anonymous Feb 28, 2008

    Fuser Jam.
    I recently replaced the BCU board to get rid of an erro message SC670, which it did. The machine now boots up normally but when I try to print it the sheet jams just as it is entering the fuser. It seem that the fuser is not turning to accept the sheet, it is warming up but does not take the sheet in. I am not sure if I might have distrubed something or if there is another problem. Please give me your thoughts on this.


    Bob G.



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I have replaced the BCU board with one salvaged from a machine which we got rid of.

Posted on Feb 28, 2008


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Photo copier ricoh sc144

SBU Communication Error
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  • SBU defective
  • The other side of the communication (BCU, IPU etc.) defective
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  1. Turn the power off/on.
  2. Reconnect the power/signal harness.
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SC 544
Heating roller thermopile (center) error 3 The thermopile detected a temperature over 260?C. • TRIAC short, AC drive board defective • Defective IOB 2 • Defective BCU sc_note_1.gif
Related SC code: SC 553, SC563 1. Do SP5810 to cancel the SC fusing code. 2. Replace the AC drive board. 3. Replace the IOB 2. 4. Replace the BCU.
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Mar 13, 2016 | Ricoh Office Equipment & Supplies

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Aficio sp c430dn error sc670. In service manual prepose to replace engine board. But i can find it. Is in SM engine board called Controller board? Also am trying to upgrade firmware. When I put in the

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Code to solution problem 690sc

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1 Answer

My Ricoh 3350B copier has displayed error SC670 can you tell me what this means?

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This may happened after a instalation. Did you install a new fax board?
Make sure that the fax board are well instaled. It have a jumper that needs to put it ON.

If this does not helps reply to me and give more info.

See you!

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1 Answer

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Mar 16, 2011 | Ricoh Aficio AP3800C Laser Printer

2 Answers

Error code SC670 shows up on my board

It’s an over load of information by the file.
Here is the actual code: SC670 mistake Engine Response.

It’s always a good idea to ask for a fix along with a question about an error code...
so what’s going on is no response from the BCU at power on; which means when the main power is turned on or the machine starts warming up from energy-saving mode, the controller does not receive a command signal from the BCU. So that could mean a

• Loose connection
• Defective controller
• Defective BCU

You can try these things:

1. Turn the main switch off and on.
2. Check the connection between the
BCU and controller.
3. Replace the controller.
4. Replace the BCU.
After replacing the BCU or controller, remove the NVRAM on the old board and put it on the new one.
If you have not worked on these units before you may need the help of a shop.

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When use adf with letter paper sise, push print botton then askme paper 5 1/2 X 8 1/2 inch´s, why do this?

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Ricoh 3800c

I would change the print controller first. It is the one where the network cable plugs in.

Feb 27, 2008 | Ricoh Aficio AP3800C Laser Printer

3 Answers

Error code SC670

Its an over load of information by the file.
here is the actual code: SC670 mistake Engine Response

Jan 25, 2008 | Ricoh Aficio AP3800C Laser Printer

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