I have Ricoh MPC 2051 erreur code SC 452

SOURCE: ricoh rex rotary sc 548

Hello wajidsn

SC548 : "Fusing Installation Error.Fusing Unit Set Error"

SOURCE: sc 481 on my ricoh aficio 1224

The problem (s) could be; defective main motor, image transfer belt out of position, belt mark blurred or absent.

A ITB belt inspection and/ or repair would be a job for tech.
Or you could just order a new PCU which would fix the problem.

SOURCE: ricoh sc 551

This is a fuser temp. problem -- must reset and/ or replace thermistors.

Press clear modes button then 1-0-7 then hold down the clear stop button.
When display changes touch copy sp modes.
Turn may power off and wait about 30 sec.
Turn power on.
If the machine comes to ready you are ok for now.
If code returns you must replace thermistors.
If you need to replace thermistors, contact me and I will get you part numbers and instructions.

SOURCE: Ricoh Aficio MP 2510 SC 541, SC 542 Errors

To clear level A SC codes such as this SC541, you need to
Enter SP mode, and then turn the main power switch off and on, only.
Please check if the thermistors are the proper ones and are installed correctly in their position properly.
This is also useful for SC542.
Please check the thermostats and fusing lamps for open circuit.

Good luck and please rate me, thanks.

SOURCE: SC 400

Check the connections of the transfer belt unit can be a false contact.
This code disappears when shut off and on the copier.