Brother HL-L3210CW - Page 89

2-70
Confidential
■ Error code 8501
The T1 paper feed sensor detected that the T1 is open when printing from the T1 (before the
registration of printing in the engine).
<User Check>
• Close the T1 correctly.
■ Error code 8505
The T1 paper feed sensor detected that the T1 is open when printing from the T1 (after the
registration of printing in the engine).
<User Check>
• Close the T1 correctly.
■ Error code 8903
The back cover sensor detected the open state when 2-sided printing is started (before the
registration of printing in the engine).
Error code 8904
The back cover sensor detected the open state during 2-sided printing (after the registration of
printing in the engine).
<User Check>
• Close the back cover correctly.
Step Cause Remedy
1
T1 paper feed actuator coming
off or caught in some sections of
the machine
Reattach the T1 paper feed actuator.
2 T1 paper feed sensor failure Replace the paper feed unit.
3 Main PCB failure Replace the main PCB.
Step Cause Remedy
1 Main PCB failure Replace the main PCB.
Step Cause Remedy
1
Connection failure of the back
cover sensor harness
Reconnect the back cover sensor
harness.
2
Back cover sensor attachment
failure
Reattach the back cover sensor.
3
Breakage of boss that presses
the back cover sensor
Replace the back cover.
4 Main PCB failure Replace the main PCB.