Question about Ricoh Aficio MP 1600L Black and White Copier

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Sc390 - Ricoh Aficio MP 1600L Black and White Copier

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  • Anonymous Dec 30, 2010

    I have a problem with sc390

  • Jorge Pereyra Dec 30, 2010

    Would you please give me more information on the problem. Does the display show any error code?
    Thanks. Keep me posted

  • Adepoju Adebayo
    Adepoju Adebayo Jan 07, 2014

    After 8 -10 copies, my ricoh 2020 display Sc390. please what is the solution?



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SC390: TD sensor error

- Possible causes -

· TD sensor abnormal
· Poor connection of the PCU

Posted on Dec 31, 2010


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The TD sensor could be bad. But more than likely you need to replace the dev material and the drum and charge roller

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Mp2000le sc390 - after excute develepor sc390 out..

Perform the TD sensor initial setting after clean the TD sensor.

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Error message sc390

SC390: TD sensor error

-Definition- [B]

The TD sensor outputs less than 0.5V or more than 4.0V 10 times consecutively

during copying.

- Possible causes -

· TD sensor abnormal
· Poor connection of the PCU

Jul 07, 2011 | Ricoh Office Equipment & Supplies

1 Answer


SC390 = Toner Density Sensor abormality

Possible causes:

  • Poor concentration of developer
  • Toner density sensor faulty

Are the prints/copies coming out ok? If the copies are very faint or heavily overtoned then changing the developer may cure the error code. If the copies look OK then you probably need to get the toner density sensor replaced by an engineer.

Hope this helps.

Feb 10, 2011 | Ricoh Aficio 450 Copier

2 Answers

I have a Ricoh aficio 2018D problem is SC390 Code i reples PCU Unit Lower unit/Drum & Developer but sc390 code problem not solw. Please help Me.

The TD sensor is reading an abnormal value, this could happen if no toner is getting into the developer unit or it could be a bad TD connection or TD failure. Would suggest checking to see if the toner supply path is working first.

Check that the toner bottle is empty and most of the toner in the development unit is depleted.Add a new bottle of toner, run a forced toner until it looks good, then run td initialization.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

Feb 03, 2011 | Ricoh Office Equipment & Supplies

1 Answer

Sc 390

SC390: TD sensor error

- Possible causes -

· TD sensor abnormal
· Poor connection of the PCU

Dec 30, 2010 | Ricoh Office Equipment & Supplies

2 Answers

Problem is sc390

SC390 TD sensor error The BICU detects the TD sensor outputting abnormal voltage (less than 0.2 V or more than 4.0 V) 10 times consecutively. • Defective TD sensor • Loose connection of the PCU
you may need a new PCU unit

Feb 13, 2010 | Ricoh Aficio 1515MF All-In-One Laser...

1 Answer

My Ricoh 2232c copier has displayed error SC374 can you tell me what this means?

SC322 Laser synchronization error SC324 LD drive current over SC390 TD sensor error 1 SC374 Development bias leak SC393 TD sensor error 2 SC401 Transfer roller leak error 1

Jan 14, 2010 | Ricoh Aficio 2232C Color Copier

2 Answers


the problem is with the toner density sensor.a quick fix would be to replace the photoconductor unit.thereafter you need to do the developer initialization adjustment.

Jun 09, 2009 | Office Equipment & Supplies

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