Brother DCP-9010CN Service Manual page 111

■ Error code 33
Print Unable 33
Turn the power off and then back on again.
Right color registration sensor error
(Incorrect reading value of the color registration sensor (Right))
Error code 34
Print Unable 34
Turn the power off and then back on again.
Left color registration sensor error
(Incorrect reading value of the color registration sensor (Left))
<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.
Step
1 Harness connection failure of
registration mark PCB ASSY
2 Registration mark PCB failure
3 Engine PCB failure
4 Main PCB failure
Cause
3-19
Remedy
Check the harness connection of the
registration mark PCB ASSY and
reconnect it.
Check the performance of the registration
mark sensor following the procedure
described in "Function code
problem occurs, replace the registration
sensor holder ASSY.
Replace the engine PCB ASSY.
Replace the main PCB ASSY.
75". If any
Confidential