Brother HL-3040CN, Service Manual, Page: 101 / 437

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Confidential
■ Error code 8E
Error in the adjustment of color registration result when implementing it from the control panel
cover ASSY.
Error code 8F
Detection of abnormal value of registration sensor sensitivity when implementing adjustment
of color registration from the control panel cover ASSY.
Error code 9D
Detection of incorrect registration sensor measurement value when implementing adjustment
of color registration from the control panel cover ASSY.
<
User Check
>
- Check if there is a scratch, dirt or the like on the belt unit. If there is, replace the belt unit
with a new one.
■ Error code 91
Incorrect paper size (The paper size of the tray and that of the data are not matched.)
<
User Check
>
- Check the paper size to be supported and load the appropriate size of paper.
Registration
Registration failed. Press Go, and try again.
Registration
Registration failed. See Troubleshooting chapter in User’s Guide.
Registration
Registration failed. See Troubleshooting chapter in User’s Guide.
Step Cause Remedy
1 Harness connection failure of
registration mark PCB ASSY Check the harness connection of the
registration mark PCB ASSY and
reconnect it.
2 HVPS control PCB failure Replace the HVPS control PCB ASSY.
3 High-voltage power supply PCB
failure Replace the high-voltage power supply
PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
5 Registration mark PCB failure Replace the registration sensor holder
ASSY.
Size Mismatch
Load <size> paper and press Go.