Brother DCP-7090 Service Manual page 104

 Error code 9309
Detected that there was no paper set in all trays when TrayAuto was selected for printing.
<User Check>
• Set paper in the paper tray.
Step
Connection failure of the MP
1
paper empty sensor PCB harness
Connection failure of the T1
2 paper feed sensor harness (non
paper empty sensor models only)
Connection failure of the T1
paper empty/paper feed sensor
3
harness (paper empty sensor
models only)
Connection failure of the T1
4
clutch harness
T1/MP paper empty actuator
caught in some sections of the
5
machine (paper empty sensor
models only)
T1 paper feed actuator caught in
some sections of the machine
6
(non paper empty sensor models
only)
7 Abrasion of the PF kit 1
T1 paper empty/paper feed
8 sensor PCB failure (paper empty
sensor models only)
T1 paper feed sensor PCB
9 failure (non paper empty sensor
models only)
10 T1 clutch failure
Damaged gears in the paper
11
feed drive system
12 Main PCB failure
 Error code 9701
For 2-sided printing, paper size setting of the printer driver that was not supported by 2-sided
printing was selected.
Error code 9702
For printing by feeding paper from the paper tray, the size of paper specified from the driver
set the size which was not supported by the paper tray.
<User Check>
• Select the specified paper size in the driver and set paper with the same size to the specified
paper tray.
Step
1 Main PCB failure
Cause
Cause
2-64
Remedy
Reconnect the MP paper empty sensor
PCB harness.
Reconnect the T1 paper feed sensor
harness.
Reconnect the T1 paper empty/paper feed
sensor harness.
Reconnect the T1 clutch harness.
Reattach the T1/MP paper empty
actuator.
Reattach the T1 paper feed actuator.
Replace the PF kit 1.
Replace the T1 paper empty/paper feed
sensor PCB ASSY.
Replace the T1 paper feed sensor PCB
ASSY.
Replace the T1 clutch.
Replace the frame L unit.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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