Error code PO4-513 on rz 390. overflow problem. I've seen the drum taken apart and cleaned out. any step by step instructions?

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

There should be a built in head cleaner. I think you can access it through the control panel, then device and printers. right click on the printer with the issue, scroll down to printer properties. there should be a box that says "print test page" when the test page prints it should ask you if it is ok, this is where the clean head should be.

re move drum and shoes replace drum and rotate drum slowly to see where the drum catches then remove drum and tap back plate with hammer then try again untill its not catching ie both sides

Ballast is possible if repeated lamp failure but I have a solution I posted several times for this type of problem that works and is simple to try:

http://www.fixya.com/support/t12296849-turns_off_shortly_after_turn?mt_f=viewFull162

If you've taken the printer apart and cleaned the belt unit and everywhere else in the paper's path, then it is probably either a bad toner cartridge or the drum. Since it's multiple colors producing splatter, its most likely the drum unit. Try taking the drum out and removing all of the toner cartridges and then clean the drums and corona wires. If its still producing splatter afterward, you've got yourself a bad drum.

You have some sort of a problem with the drum unit (PCU) in your copier. You don't specify a brand or model, but the code resembles that of a machine from the Ricoh brand line (including Lanier, Gestetner, and Savin) If this is the case, then this info pertains to your question, though may not be exact, as not all models within a brand range are laid out the same.

Below is what the service manual states, taken from a typical small to mid-sized unit:

SC302: Charge roller current leak
-> A charge roller current leak signal was detected.

Possible Problems:
• Charge roller damaged
• High voltage supply board defective
• PCU harness defective or disconnected

While this may not pertain to your model, I have seen this code occur if a securing screw for the cleaning blade in the PCU loosens and falls out of place. I've also seen on larger models (35 to 45 ppm) where the charge roller mounting arms are not making good contact with the metal tabs inside the PCU.

D04-534 means incorrect ink cartridge set. This could be caused either a) it IS the incorrect ink cartridge, or b) the RF tag that is struck to the end of the ink bottle is damaged. Try a new ink bottle.
Make sure to use RISO ink designed and made specific for an RZ230.

The master is stucked on the print drum,open print drum remove master and try again.
Let me know for futher help.

that is the ink overflow sensor.