Error sc 302 - Ricoh Aficio CL3500N Laser Printer

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

Hi
I managed to find a list of Ricoh error codes with brief explanations of their causes here:
Ricoh copiers error code messages
This clearly identifies the problem as a laser motor problem - OR
Charge roller, HVT, or fuse FU5 (AFICIO 340, 350 series, 355, 450 series, and 455) - OR
SC-302-01, 02, 03, 04 Charge corona assembly Aficio 550/650
SC-303 Charge corona wire cleaner, disconnected or time out for printer.
All of these sound rather like an engineer requirement but you may be able to something with appropriate spares

Yes, mine were successfully RESET from the error code SC:552 and SC:302. Machines runs good, but i about to wander what could be faulty inside, it took one month after error code 302 exist. Mine was exactly DSM615 same model same error code 302 (this is really 302) which resolved by reset. Hopefully machine will run good for two months.
To RESET it
1. Press Yellow button
2. Press 1, 0, 7
3. Hold Orange button for 3 seconds
4. Select MODE 5
5. Select Clear Memory (or something like it) (801)
6. Select 002-Engine
7. Select EXECUTE
8. Turn the switch off and leave it for a minute
9. Turn back machine On.
10. Done, or else there could possibly something else.

Good Luck....
Thanks for using Fixya.

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

i have an error on my printer sc 302 how i can clear it easily .printer is ricoh 3045

SC:302
Charge roller current leak

Symptom: A current leak signal for the charge roller is detected.
Possible Cause:
?? Charge roller damaged
?? High voltage supply board defective
?? Poor connection of the PCU

The Ricoh Aficio MP 161 LN give error code - SC 302

Please adivse

sc 302 - charge roller current leak. strip the drum unit (dmu) and clean the unit

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).

SC 302 has to do with you charge corona wire.  It's unrelated to the toner spill.  It could be a bad conora wire.  Sometimes it's the power supply.  There could be a lot of troubleshooting and repair to do on this one, you might want to contact a dealer in your area since the have the right tools for the right job.