Brother HL-L5000D Service Manual page 100

 Error code 870C
Machine stack sensor or MX 1bin stack sensor detected the eject paper full state at the start
of printing when the MX 1bin was selected as the output tray and "Use Std. Tray when full"
setting was ON.
Error code 870D
Machine stack sensor or MX 2bin stack sensor detected the eject paper full state at the start
of printing when the MX 2bin was selected as the output tray and "Use Std. Tray when full"
setting was ON.
Error code 870E
Machine stack sensor or MX 3bin stack sensor detected the eject paper full state at the start
of printing when the MX 3bin was selected as the output tray and "Use Std. Tray when full"
setting was ON.
Error code 870F
Machine stack sensor or MX 4bin stack sensor detected the eject paper full state at the start
of printing when the MX 4bin was selected as the output tray and "Use Std. Tray when full"
setting was ON.
<User Check>
• Remove the paper from the appropriate output tray.
Step
Malfunction of the MX control
1
PCB
MX 1bin, 2bin, 3bin, or 4bin stack
2 actuator coming off or caught in
some sections of the machine
MX 1bin, 2bin, 3bin, or 4bin
3
stack sensor failure
4 MX control PCB failure
5 Main PCB failure
 Error code 8808
MX back cover sensor detected the open cover when the MX was selected as the output tray
(before registering printing data to engine).
Error code 8809
MX back cover sensor detected the open cover when the MX was selected as the output tray
(after registering printing data to engine).
<User Check>
• Close the MX back cover correctly.
Step
MX back cover sensor
1
attachment failure
Connection failure of the MX
2
back cover sensor harness
3 Damaged MX back cover
4 MX back cover sensor failure
5 MX control PCB failure
6 Main PCB failure
Cause
Install the latest main firmware.
Reattach the appropriate stack actuator.
Replace the appropriate stack sensor.
Replace the MX control PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the MX back cover sensor.
Reconnect the MX back cover sensor harness.
Replace the MX back cover.
Replace the MX back cover sensor.
Replace the MX control PCB ASSY.
Replace the main PCB ASSY.
2-74
Remedy
Remedy
Confidential