Brother HL-L8250CDN, Service Manual

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