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Confidential
Error code 8900
The registration front sensor detected that the paper fed was smaller than or larger than the
specified size in duplex printing mode.
Error code 8A00
The registration front sensor does not detect paper pass within the specified time after the T1
paper feed sensor detected paper pass.
Error code 8B00
The registration front sensor does not detect paper pass within the specified time after the T2
paper feed sensor detected paper pass.
Size Error DX
Specify the correct paper.
<User Check>
• Use A4 or Letter-size paper.
Step Cause Remedy
1
Registration front actuator
caught in some sections of the
machine
Reattach the registration front actuator.
2
Registration front sensor failure Refer to "1.3.10 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the registration front/rear sensor
PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
Jam Tray 1
Remove the jammed paper from Tray 1.
Jam Tray 2
Remove the jammed paper from Tray 2.
<User Check>
• Remove the paper jammed in the front section of the machine.
• Adjust the paper guide according to the paper size.
• Check that the thickness of the paper is 60 to 105 g/m
2
.
• Check that there is not too much paper set in the tray.
Step Cause Remedy
1
Foreign object in the front of the
machine
Remove the foreign object.
2
Registration front actuator caught
in some sections of the machine
Reattach the registration front actuator.
3
Connection failure of the registration
front/rear sensor harness
Check the connection of the registration front/rear
sensor harness, and reconnect it if necessary.
4
Registration front sensor failure Refer to "1.3.10 Check sensor operation
(function code: 32)" in Chapter 5 to check the
sensor operation. If the sensor operation is
faulty, replace the registration front/rear sensor
PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.
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