The Ricoh copier error code 553 / SC 553 is a fusing thermisor error 3 code.
If your machine is displaying this code you may need to:
Replace PSU board
Replace IOB board
Replace BICU board
To reset this error try the code:
"Clear Mode"+107+"Clear/Stop" hold for 5s.
Turn ON and OFF the Main Switch.
If the problem persists you may need to contact a local service technician to take a look at your copier.
Contact us by phone, email, or reply to this post with any questions you may have, we can always help.