Brother DCP-L8400CDN Service Manual page 78

■
Error code 4300
Supplies
Belt End Soon
Number of pages printed with the belt unit will reach the upper limit soon. (90%)
Error code 4400
Supplies
Replace Belt
Number of pages printed with the belt unit has reached the upper limit. (Printing is not stopped.）
< User Check >
- Prepare a new belt unit.
Step
1 Main PCB failure if the error code
remains after replacing with a
new belt unit and resetting the
belt counter
■
Error code 4500
Maintenance
Replace Fuser
Number of used pages for the fuser unit has reached the upper limit. (Printing is not stopped.）
Step
1 The fuser unit is at the end of life
2 Main PCB failure if the error code
remains after replacing with a
new fuser unit and resetting the
fuser unit counter
■
Error code 4600
Maintenance
Replace Laser
Number of pages printed with the laser unit has reached the upper limit.
Step
1 The laser unit is at the end of life
2 Main PCB failure if the error code
remains after replacing with a
new laser unit and resetting the
laser unit counter
Cause
Replace the main PCB ASSY.
Cause
Replace the fuser unit. After replacing the
fuser unit, refer to
for parts (Function code 88)" in Chapter
and reset the fuser unit counter.
Replace the main PCB ASSY.
Cause
Replace the laser unit. After replacing the
laser unit, refer to
for parts (Function code 88)" in Chapter
and reset the laser unit counter.
Replace the main PCB ASSY.
2-48
Remedy
Remedy
"1.3.37 Reset counters
5,
Remedy
"1.3.37 Reset counters
5,
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