Error occured SC:302 Functional Problem Turn main power switch off and on if the error appears again. Call Service

Error SC 998 on a Ricoh MP2851 printer indicates a functional problem with the printer. This error can be caused by a variety of issues, including hardware or software problems, or problems with the printer's firmware.
To troubleshoot this issue, try the following steps:

1. Restart the printer: Turn the main power switch off and then on again to see if the error message clears.
2. Check for any visible issues: Inspect the printer and its components for any visible issues that may be causing the problem. This can include debris or foreign objects that may have gotten stuck in the printer, or damage to the printer or its components.
3. Check the printer's firmware: Make sure the printer's firmware is up to date and that it is functioning properly. If the firmware is not up to date or is not functioning properly, it can cause the printer to display an error message.
4. Check the printer's connections: Make sure the printer is properly connected to any devices or computers it is being used with, and that the connections are secure. If the printer is not properly connected or the connections are loose, it can cause the printer to display an error message.

If you have tried these troubleshooting steps and the problem persists, it may be necessary to have the printer serviced by a professional. A technician will be able to diagnose the problem and determine the necessary repairs.
I hope this information is helpful. If you have any further questions or need additional assistance, please don't hesitate to ask.

sc 302 cause dirty copy, if u see the dram it is dotted, replace dram or charging roller..

image transfer belt contact sensor is dirty clean it

Push clear modes 1 0 7 then stop for 5 seconds

It's a fuser overheat error enter service mode to clear, if it comes back service call ( push in sequence clear modes(yellow) 1 0 7 hold down stop for 5 or so seconds, screen will change, power down, red switch. -Carl

Hello Mist. I have Functional problem detected. Turn main power switch off then on. If error appears again, please call service. SC672.Alficio MP 5001......?

Hi
This error indicates problems with the laser motor on your printer.
Have it replaced.

After turn the main switch off and on the error appears again????
This error means that there is a bad comunication between the controller board and the operation panel.
Did you intervew in the machine? Some tecnical intervewing?

This code refer to main charge.The charge corona leakage.Check the charge corone wire and grid (clean or change),clean the corona unit input contacts,check the main charge power pack and the high voltage control board.Recomand to change the corona holders,wire and grid.To reset the error code Turn OFF the power switch unplugged wait 10 sec plugged and turn ON the switch.

Are you sure of the code? I don't have the exact manual for that, machine but the number seems strange. "5xx" errors are usually related to the fuser, so could be a bad lamp, thermistor, or fuse. see note to reset (if there is not a problem) as follows:
There are 2 levels of service call conditions.
Level Definition Reset Procedure
"A"
To prevent the machine from being
damaged, the SC can only be reset by a
service representative.
The copier cannot be operated at all.
Enter SP 5-810 (SC code reset) and
select “1”. Then hold down the Original
type key and the OK or ! key at the
same time (this does not require the
main switch to be turned off and on).