Toshiba e-STUDIO2803AM - Cover Open Jam

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ERROR CODE AND TROUBLESHOOTING
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8.3.5 Cover open jam
[E400] Right cover open jam: (When ADU is not installed)
Classification Error content
Cover open jam The right cover has opened during printing.
Proce
dure
Check item Result Measure
Next
Step
1
Is the right cover open? Yes Remove paper if there is any, then close the
cover.
No
2
2
Is the voltage of 24V being
supplied from the power
supply unit? (Perform the
input check in the test
mode: 03-[6]/[A])
Yes
3
No • Check if the connector for 24 V power
supply is disconnected.
• Check if any of the connectors on the MAIN
board is disconnected.
20L/23L/25L/20H/23H/25H: CN25
23LA/23LM/28LM/23HA/28HA: CN21
• Check if the connector pins are
disconnected and the harnesses are open
circuited.
• Check if the conductor pattern on the MAIN
board is short circuited or open circuited.
• Replace the right cover opening/closing
switch.
3
MAIN board • Replace the MAIN board.
Parts to be replaced Remark
Right cover opening/closing switch
MAIN board