Brother MFC-9340CDW - Page 107

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Confidential
■ Error code 9901
Error occurred with the value measured during adjustment of color registration.
<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.
■ Error code 9902
Dot counter or develop roller counter of color toner has reached the upper limit during
adjustment of color registration.
<User Check>
- Replace the corresponding toner cartridge.
Registration failed
See Troubleshooting chapter in User's Guide
Step Cause Remedy
1 Registration mark sensor L/
registration mark sensor R dirty
Clean the registration mark sensor L/
registration mark sensor R.
2 Registration mark L PCB/
Registration mark R PCB
harness connection failure
Check the registration mark L PCB/
registration mark R PCB harness
connection and reconnect it.
3 Eject sensor PCB harness
connection failure
Check the eject sensor PCB harness
connection and reconnect it.
4 Failure in printed measurement
pattern image
If failure occurs when printing "2D3S
YCMK_ _A" in "Function code 71", refer to
"4.3 Image Defect Troubleshooting" in this
chapter and take a measure.
5 Registration mark L failure Replace the registration mark L PCB
ASSY.
6 Registration mark R failure Replace the registration mark R PCB
ASSY.
7 Main PCB failure Replace the main PCB ASSY.
Registration failed
Press [OK], and try again.
Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.