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© 2012 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO556/656/756/856(Ver03)
ERROR CODE AND TROUBLESHOOTING
8 - 13
C940 Circuit related
service call
Engine-CPU abnormality P. 8-120
C970 High-voltage transformer leakage abnormality: The high-
voltage leakage of the main charger is detected.
P. 8 - 1 20
CA10 Laser optical unit
related service call
Polygonal motor abnormality: The polygonal motor does
not run normally.
P. 8-98
CA20 H-sync detection error: Laser beam cannot be detected
at the SNS board.
P. 8 - 1 00
CA30 Secondary scanning coarse adjustment error
[e-STUDIO756/856]
P. 8 - 1 01
CA41 Window comparator abnormality (error during secondary
scanning control)
[e-STUDIO756/856]
P. 8 - 1 01
CA42 Sensor signal busy error (error during secondary
scanning control)
[e-STUDIO756/856]
P. 8 - 1 01
CA43 Comparator abnormality
[e-STUDIO756/856]
P. 8 - 1 01
CA50 Laser power adjustment error
[e-STUDIO756/856]
P. 8 - 1 01
CA90 Image data transmission error of SYS board:
Communication error has occurred between the PLG
board and the SYS board.
P. 8 - 1 01
CAA0 Secondary scanning fine adjustment error: Secondary
scanning control by the galvanometer mirror does not
end normally.
[e-STUDIO756/856]
P. 8 - 1 01
CAB0 Inter-page correction error of secondary scanning: Inter-
page secondary scanning control by the galvanometer
mirror does not end normally.
[e-STUDIO756/856]
P. 8 - 1 01
CAC0 Primary scanning dot adjustment error: Primary scanning
control does not end normally.
[e-STUDIO756/856]
P. 8 - 1 01
CAF0 Inter-page correction error of primary scanning: Inter-
page primary scanning control does not end normally.
[e-STUDIO756/856]
P. 8 - 1 01
CB10 Finisher related
service call
Feed motor abnormality: The feed motor does not run
normally or the stack feed roller does not move normally.
P. 8 - 1 02
CB20 Delivery motor abnormality: The delivery motor does not
run normally or the delivery roller does not move
normally.
P. 8 - 1 02
CB30 Tray lift motor abnormality P. 8-103
CB40 Alignment motor (rear) abnormality: The alignment motor
(rear) does not run normally or the alignment plate does
not move normally.
P. 8 - 1 03
CB50 Staple motor abnormality: The staple motor does not run
normally or the stapler does not move normally.
P. 8 - 1 04
CB60 Stapler shift motor abnormality: The stapler shift motor
does not run normally or the Staple Unit does not move
normally.
P. 8 - 1 04
CB70 Stack amount detection sensor abnormality P. 8-104
CB80 Backup RAM data abnormality:
1. Abnormality of checksum value on the finisher
controller PC board is detected when the power is
turned ON.
2. Abnormality of checksum value on the punch
controller PC board is detected when the power is
turned ON.
P. 8 - 1 05
CB90 Paper pushing plate motor abnormality: The paper
pushing plate motor does not run normally or the paper
pushing plate does not move normally.
P. 8 - 1 06
CBA0 Stitch motor (front) abnormality: The stitch motor (front)
does not run normally or the rotational cam does not
move normally.
P. 8 - 1 07
Error code Classification Contents Troubleshooting
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