Error about 3 richo.nashuatec 506 erro sc 187. error sc387.how can i reset the machine.

How can I clear error sc 20000 0n richo ipsio sg 7100 printer
WHEN i PUT PRINTER ON RED ALERT LIGHT ON ERROR sc 20000 WHAT CAN i DO

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.

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

Please adivse

sc 375= Vt error [Yellow] (toner density sensor error)
sc 387=Development gamma error Yellow

it looks like there is a problem with your yellow development unit.
it may not set in properly or needs to be replaced.

01. Press Clear/Stop Key (Yellow key) 2 tram
02. type 107
03. press Hold down Clear key 5 secend ( Red key)
04. type 5 and press # or Ok
05. type 810 and Press # of Ok
then machine Of and On

Press 'Function Clear', 1, 0, 7, then press and hold 'Clear/Stop' button for 3 secands. Machine displays SP Mode. Now turn MAIN power switch off for 5 seconds. Turn MAIN power switch back on. This should reset SC 547 code. (Main power switch is located on the left side of the copier)

YOU NEED TO RESET THAT CODE

hi!!!!!

may be the was damaged
or
try to clean use dry tissue
or replaced the drum

I have infotec machine when I powered machine a error code genereted sc 541 what is the solution?

Hi
fuser code your thermistor is bad
good luck