Toshiba e-STUDIO2820C Service Handbook page 330

[C570] Communication error between Engine-CPU and IPC board
(1) Check if the LGC board and IPC board are connected properly.
(2) Check if the conductor pattern on the IPC board is short circuited or open circuited.
(3) Check if the conductor pattern on the LGC board is short circuited or open circuited.
(4) Replace the IPC board.
(5) Replace the LGC board.
[C580] Communication error between IPC board and finisher
(1) Check if the specified finisher is attached.
(2) Check if the harness connecting the IPC board and the finisher controller PC board is discon-
nected or open circuited.
(3) Check if the conductor pattern on the IPC board is short circuited or open circuited.
(4) Check if the conductor pattern on the finisher controller PC board is short circuited or open cir-
cuited.
(5) Replace the IPC board.
(6) Replace the finisher controller PC board.
[F070] Communication error between System-CPU and Engine-CPU
(1) Check the version of the system ROM on the SYS board.
(2) Check the version of the engine ROM on the LGC board.
(3) Check if the connector CN423 on the IMG board and the connector CN354 on the LGC board
are completely inserted.
(4) Check if the connector pin between the IMG board (connector CN423) and the LGC board (con-
nector CN354) is disconnected.
(5) Check if the connector CN422 on the IMG board and the connector CN135 on the SYS board are
completely inserted.
(6) Check if the connector pin between the IMG board (connector CN422) and the SYS board (con-
nector CN135) is disconnected.
(7) Check if the conductor patterns on the IMG board, LGC board and SYS board are short circuited
or open circuited.
(8) Replace the LGC board if no problem is found in steps from (1) to (7) above.
(9) If the problem is not corrected with the replacement of the LGC board, reinstall the removed LGC
board and replace the SYS board.
(10) If the problem is still not corrected with the replacement of the SYS board, reinstall the removed
SYS board and replace the IMG board.
[F110] Communication error between System-CPU and Scanner-CPU
[F111] Scanner response abnormality
(1) Check if the harness connecting the IMG board and SLG board is disconnected or open cir-
cuited.
(2) Check the version of the system ROM on the SYS board.
(3) Check the version of the scanner ROM version on the SLG board.
(4) Replace the SYS board.
(5) Replace the SLG board.
e-STUDIO2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
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