I have a Ricoh Aficio SP c431dn printer with a SC 360 error. What could be the problem and how do I fix it? The service manual says it could be a problem with the TD sensor. How do I replace it?

You need to switch the power switch off.
Hold down either the online & escape or stop/start & escape while switching the machine on.
The machine should start up in service mode.
Select 1 for service mode
Select 5 for mode
Scroll to 810 SC reset and select enter
Select execute.
Switch machine off and on again.

change the fusing thermister
thanks

Rotors are bad. Call service.... Not an easy fix

my dear you chek ld unet

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FOR RICOH AFICIO SP 3400SF follow below steps.

1. To access Service Mode, On Control Panel press following buttons one
by one immediately.

Cancel Button (Red) ---> 1 (Numeric One) ---> 0 (Numeric zero) ---> 7
(Numeric Seven) ---> Copy Button (Green)

2. In Service Menu you will find Engine reset Menu. In that you can reset
SC 545 in Fuser Reset Menu. And you can also reset SC 542.

Turn the machine off, hold down online & escape, turn machine on and wait for "1.Service Menu"
Select service menu, find sp 5-810, select #/enter, when it says "execute select #/enter, then escape. Turn machine off then on.

No.
Type
Details (Symptom, Possible Cause, Troubleshooting Procedures)
553
A
Heating roller overheat (software error)
The detected heating roller temperature stays at 230°C or more for 1 second.
• Defective PSU
• Defective lOB
• Defective EGB
Related SC code: SC 543
1. Replace the PSU.
2. Replace the lOB.
3. Replace the EGB.
This is the simptoms of the service manual , you should check that your power output is stable and double check if there is not anything like paper stuck some were in the fuzing unit wich could also cause the fuzer to over heat