Brother HL-L8250CDN Service Manual page 96

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Error code 9A03
Registration
Registration failed. Press Go, and try again.
Error occurred during patch data printing in auto color registration performed from the control
panel.
< User Check >
- Check if the toner cartridges are set in the correct order of colors.
- Replace the toner cartridge.
- Replace the drum unit.
- If the belt unit has a scratch, replace it.
- If "WT Box End Soon" is displayed on the LCD and the belt unit has dirt, replace the waste
toner box.
Step
1 Dirt on the registration mark
sensor L/registration mark
sensor R
2 Connection failure of the
registration mark sensor L PCB/
registration mark sensor R PCB
harness
3 Failure in printed measurement
pattern image
4 Registration mark sensor L or
registration mark sensor R failure
5 Main PCB failure
Cause
2-73
Remedy
Clean the registration mark sensor L/
registration mark sensor R.
Reconnect the registration mark sensor L
PCB/registration mark sensor R PCB
harness.
If failure occurs when printing "2D3S
YMCBWKW_A" in "Function code
refer to
"4.3 Troubleshooting for Image Defects" in
this chapter and take a measure.
Replace the registration mark sensor unit.
Replace the main PCB ASSY.
71",
Confidential