2-70
Confidential
Error code 7B05
The MX 4bin stack sensor does not detect paper pass within the specified time after the MX
jam upper sensor detected paper pass.
Error code 7F00
MX(2 or 4) bin sensor detected that the only one of the two removable plates is removed
from the MX.
<User Check>
• Remove the jammed paper.
• Close the MX back cover correctly.
Step
Cause
Remedy
1
Foreign object in the rear of the
machine
Remove the foreign object.
2
MX flapper 3 attachment failure Reattach the MX flapper 3.
3
MX 4bin stack actuator
attachment failure
Reattach the MX 4bin stack actuator.
4
Connection failure of the MX
4bin stack sensor harness
Reconnect the MX 4bin stack sensor harness.
5
Connection failure of the MX
relay PCB harness
Reconnect the MX relay PCB harness.
6
MX 4bin stack sensor failure
Replace the MX 4bin stack sensor.
7
MX relay PCB failure
Replace the MX relay PCB ASSY.
8
MX control PCB failure
Replace the MX control PCB ASSY.
9
Main PCB failure
Replace the main PCB ASSY.
<User Check>
• Remove or attach both of the two removable plates.
• Reattach the removable plates.
Step
Cause
Remedy
1
Connection failure of the MX
2bin detection sensor harness
or MX 4bin detection sensor
harness
Reconnect the MX 2bin detection sensor
harness or MX 4bin detection sensor harness.
2
MX 2bin detection sensor or MX
4bin detection sensor failure
Replace the MX 2bin detection sensor or MX
4bin detection sensor.
3
MX control PCB failure
Replace the MX control PCB ASSY.
4
Main PCB failure
Replace the main PCB ASSY.