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December 2002 TOSHIBA TEC 4 - 43 e-STUDIO160/200/250 TROUBLESHOOTING
C57 Communication error between the IPC PWA and the CPU on the main PWA
1. Check the circuit patterns on the main PWA for short-circuits and breaks.
2. Check the IPC PWA for short-circuits and breaks.
3. Replace the IPC PWA.
4. Replace the main PWA.
C58 Communication error between the IPC PWA and the finisher
1. Check if the specified finisher is attached.
2. Check the IPC PWA for short-circuits and breaks.
3. Check if the pin of the connector being connected to the connector J2 on the IPC PWA is
disconnected or the harness is breaking.
4. Check if the fuse F3 of the power supply unit is blown.
5. Check the control PWA in the finisher for short-circuits and breaks.
6. Check the connections between the finisher and copier if the connector pins are discon-
nected, or the harnesses are breaking.
7. Replace the IPC PWA.
8. Replace the main PWA.