Printer jams when printing and I ricoh cl2000n error code sc486

Something inside printer is blocked. There is a magnetic clutch that sometimes could be a reason. Check that Waste Toner bottle is not full because in that case many bad things can happened.
I can tell you this for sure:
it's time to replace the printer with new one!!!
Maybe you will be able to buy cheep SPC410, SPC420. They are perfect

BK Solenoid Error : The BK solenoid cannot drive the black PCU

Engine board or Drive unit is probably broken

it is the problem your cartridge sensor chip.You change cartridge unite & buy new cartridge than solve it

Black drum motor error. These machines are bad about the waste toner building up in the drum unit. You could try and take the auger out of the drum unit(very messy) and clean it out or try replacing the black pcu.

You must have a "special paper" size set in the tray other than "plain", or perhaps the wrong size, so the printer needs you to override the setting. Check the settings. You can find out how on pages 24, 25 of the "operating guide". Go to the following web page to download it -just select your model from the drop down list:

http://www.ricoh-usa.com/downloads/manuals.asp?tsn=Ricoh-USA

Flashing orange means low toner.....solid red should be a paper jam

You may have to replace the transfer belt or the drum. I would start with the drum first

http://www.websitetoolbox.com/mb/copierquestions

Realizar a troca do BK Solenoid.

Ele está localizado dentro do driver onde estão as engrenagens, ao lado esquerdo da impressora atrás da placa BICU

The manual says this code means " BCU Received no Feedback from LD" I have no idea what that means, but maybe it will help a tech on hear tell you more.

HAD SAME PROB I WORK FOR RICOH DIRECT SERVICE 670 IS ENGINE CONTROL BOARD OK....