Toshiba e-STUDIO 2555C Service Manual page 651

[EA40] Cover open detection error
Classification
Paper jam in finisher section
MJ-1036
Probable cause
Sub-path opening/closing
sensor (S12) abnormality
Front cover switch (SW1)
abnormality
Faulty cables and connectors
Finisher control PC board
(FIN) abnormality
[EA40] Door open jam
Classification
Paper jam in finisher section
MJ-1107
Check item
Front cover
Front cover switch
Stationary tray opening/closing
switch
Finisher controller PC board
Parts to be replaced
Handle cover
Front cover switch
Stationary tray opening/closing
switch
Finisher controller PC board
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Cover open error
Checking and measures
Measure the voltage on TP12 on the finisher control PC board
(FIN). Then check that the measured voltage is 1V or lower when
not shielded and within the range of 3.3V±5% when shielded. If the
voltage does not fall within the range mentioned, replace the
sensor.
Measure the voltage on TP77 on the finisher control PC board
(FIN). Then check that the measured voltage is 1V or lower when
the switch is ON and within the range of 3.3V ± 5% when OFF. If the
voltage does not fall within the range mentioned, replace the switch.
Check if the electrical continuity between the connector terminals is normal.
If electricity is not conducted, replace the connector. (Finisher control PC
board (FIN): CN10, CN13)
If the error still occurs after replacing the switches, sensor and connector,
exchange the finisher control PC board (FIN).
Error content
Door open jam
Measures
• Close the front cover if it's open.
• Switch check(SW1)
• Connector check (CN16)
• Harness check
• Switch check(SW2)
• Connector check (CN16)
• Harness check
• Switch check
• Connector check (CN16)
• Harness check
Remark
If it is broken.
8 - 95
Error content
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8