Please solve this problem Ricoh 7650 Code SC 902, 302 and 322

Question edited tor a lot more clarity and add MAKER, but NO MODEL NUMBER! All questions need full make and model.

Ricoh Aficio 200 - Error Code: SC390

PrintCopy .info https://printcopy.info > code=SC390
Code: SC390; Description: TD sensor error 1. The TD sensor outputs less than 0.5V, 20 s after the TD sensor initial setting has been performed.
Missing: cod ‎' Must include: cod

SOLVED: How fix sc390 cod of ricoh

Fixya https://www.fixya.com > ... > Ricoh
The closest thing is the sc390 code, which means either the toner density sensor or the developer has gone bad, and typically replacing the PCU can fix that ...

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  SOLVED: Code SC 390

  https://www.fixya.com > ... > Aficio MP6001 Copier
  Code SC 390 the code SC390 occurs when power on the machine. ... Service code sc 390 RICO Aficio 1015 coppier ... Sc 390 cod. what this?

Error Code sc 390

Copytechnet https://www.copytechnet.com > 56632-sc-390-a
Sep 24, 2011 - I've got an Aficio 1018 that's generating sc390 after every 10 copies. I recently fitted new drum, cleaning blade and developer and changed ...
Missing: cod ‎' Must include: cod

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  Error code SC 390

  https://www.copytechnet.com > forums > 47571-error...
  Dear all Experts i often got an error code sc 390 on my ricoh aficio 270.kindly tell me what to do with this problem.

RICOH Error Code List - mtechsinfo.com

mtechsinfo.com http://www.mtechsinfo.com > files > Ricoh Erro... PDF SC-390-2. Toner density sensor error. SC-391. Developer bias problem or FU103 on Aficio 550/650 Image storage address error. Aficio 551, 551P, 700, 700P.
14 pages

Question edited for clarity and correct order, 'make model problem'.

Error Codes > Ricoh > AP828 > Code SC829

PrintCopy .info https://printcopy.info > brand=Ricoh > code=SC829
Ricoh AP828 · Code: SC829 · Description: Self-diagnosis error: optional RAM [XXXX]: Detailed error code [0302] Composition error (Slot 0) The result of checking ...
Missing: 232 ‎' Must include: 232

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  Error Codes > Ricoh > Aficio 1027 > Code 829

  https://printcopy.info > brand=Ricoh > code=829
  Code: 829 ; Description: Self-diagnostic Error: Optional RAM The optional RAM returned an error during the self-diagnostic test. ; Causes: · Replace the optional ...

North American website, we speak English :>)

I have a ricoh mp c5501 which displays sc819

Google Translate ici.

https://translate.google.ca/?sl=auto&tl=en&text=J%27ai%20une%20ricoh%20mp%20c5501qu%20iaffiche%20sc819&op=translate

The answer is NOT good!

AFICIO MP C551 SC 819 ( 5348 0x5554444F ) - Copytechnet

https://www.copytechnet.com > forums > 126200-aficio...
Jan. 13, 2018 - SC 819 is a fatal kernel error. Either the controller and possibly other boards were blown by the power surge or the components you replaced on ...
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SOLVED: What is sc819 for ricoh aficio c4501 - Fixya

https://www.fixya.com > ... > Ricoh
Sep. 1, 2019 - Yeah most likely the Hard Drive, just replace them with off the shelf ones. Could also be the dimms, controller, nvram or firmware. I would unplug the HDD first ...
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Ricoh Aficio 480W - SC819 - PrintCopy .info

https://printcopy.info > brand=Ricoh > code=SC819
Ricoh Aficio 480W · Code: SC819 · Description: Fatal kernel error. Due to a control error, a RAM overflow occurred during system processing. One of the following ...

This code comes back as: SC-321 Laser write problem, BCU board, EX-IPU board

This repair (if repairable) is in the hands of a technician. Nothing you can do to solve this one.

I have Aficio MPC 2550 and it displays Sc 829. Is the a way to reset this code?

If you can tell that the fuser is trying to heat up then you are going to have to replace the thermistors. The thermistors or thermisters are 2 parts in the fuser that "read" the fuser temperature. When 1 or both go bad then the machine can not "see" the heat and thus throws the code. Ricoh's in particular have more issues with the thermisters than other brands. Here is a link to a site that has the thermistors and a picture of what they look like.
Good Luck and Thank You for using Fixya.
WheatlandServices
http://www.precisionroller.com/search.php?q=ricoh+1027+thermistor

still sc329 error

I am a Ricoh tech and my service manual doesent have a 300 code,

There are no SC 680 codes listed in the service manual for a 2045e
Please re check the code