When Sc672 (Controller Start Up Error) Is Displayed; Symptom - Ricoh MP C2504 Field Service Manual

6. Troubleshooting
2. Replace IPU
3. Replace CTL
4. Replace PSU
SC670-03
IPU start up error when the machine boots up.
Replace the part in order of precedence stated below (since there is a high possibility that those
parts are broken and causing the error).
1. Replace IPU
2. Replace CTL
3. Replace PSU
4. Replace BCU.
SC670-04
Communication error between the engine and controller.
Replace the part in order of precedence stated below (since there is a high possibility that those
parts are broken and causing the error).
1. Replace IPU
2. Replace BCU
3. Replace CTL
4. Replace PSU

When SC672 (Controller start up error) Is Displayed

Symptom

Note: CTL = Controller
The following occur:
SC672-00
SC672-10
SC672-11
SC672-12
978
Communication error between operation panel and CTL after machine is powered
on.
Communication error (receive) between operation panel and CTL after machine is
powered on.
Communication error (send) between operation panel and CTL after machine is
powered on.
Communication error between operation panel and CTL after normal start-up.