Toshiba e-STUDIO2820C Service Handbook page 338

[CB11] Buffer tray guide motor abnormality
* You receive a [CB11] error when the [ED16] error occurs three times in succession.
MJ-1101
Is there any mechanical problem when the buffer tray guide is opened/closed while the buffer
roller is lifted up?
YES
NO
Is the harness between the buffer tray guide motor (M3) and the finisher control PC board
(CN18) disconnected or open circuited?
l YES
NO
1. Replace the buffer tray guide motor (M3).
2. Replace the finisher control PC board.
[CB12] Buffer roller drive motor abnormality
MJ-1101
Is there any mechanical problem when the buffer roller is rotated?
YES
NO
Is the harness between the buffer roller drive motor (M6) and the finisher control PC board
(CN18) disconnected or open circuited?
l YES
NO
1. Replace the buffer roller drive motor (M6).
2. Replace the finisher control PC board.
[CB30] Tray 1/2 shift motor abnormality
MJ-1030
Are the tray 1 shift area sensors 1-3 and tray 2 shift area sensors 1-3 normal?
NO
YES
Are the wirings between the finisher controller PC board and the tray 1/2 shift motors (M37/
M38) correct?
NO
YES
Is there any problem with the tray lift mechanism?
NO
YES
1. Replace the tray 1/2 shift motors.
2. Replace the finisher controller PC board.
e-STUDIO2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
Fix the mechanism.
• Reconnect the connector securely.
• Replace the harness.
Fix the drive mechanism.
• Reconnect the connector securely.
• Replace the harness.
Replace the tray 1/2 shift area sensor boards.
Correct the wirings.
Fix the lift mechanism.
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