Toshiba e-STUDIO556 Service Manual page 657

Multifunctional digital systems

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Communication related service call

[C550] RADF interface error (e-STUDIO556/656/756/856)

Check if the harness connecting the RADF board and SLG board is disconnected or open

Check if the conductor pattern on the RADF board is short circuited or open circuited.

Check if the conductor pattern on the SLG board is short circuited or open circuited.

Replace the RADF board.

Replace the SLG board.

[C550] RADF interface error (e-STUDIO557/657/757/857)

Check if the harness connecting the RADF board and SYS board is disconnected or open

Check if the conductor pattern on the RADF board is short circuited or open circuited.

Check if the conductor pattern on the SYS board is short circuited or open circuited.

Replace the RADF board.

Replace the SYS board.

[C560] Communication error between Engine-CPU and PFC

Check if the conductor pattern around IC57 and IC58 on LGC board is not short- or open-

Replace the LGC board.

[C570] Communication error between Engine-CPU and IPC board

Check if the LGC board and IPC board are connected properly.

Check if the conductor pattern on the IPC board is short circuited or open circuited.

Check if the conductor pattern on the LGC board is short circuited or open circuited.

Replace the IPC board.

Replace the LGC board.

[C580] Communication error between IPC board and Finisher

Check if the specified finisher is attached.

Check if the harness connecting the IPC board and the finisher controller PC board is

disconnected or open circuited.

Check if the conductor pattern on the IPC board is short circuited or open circuited.

Check if the conductor pattern on the finisher controller PC board is short circuited or open

Replace the IPC board.

Replace the finisher controller PC board.

e-STUDIO556/656/756/856/557/657/757/857

ERROR CODE AND TROUBLESHOOTING