TROUBLESHOOTING FLOW CHART
10 October, 2002
4-14
4.5.9 BLACK SPOT
NO
YES
Is it regular
interval of 37.7
mm?
NO
NO
YES
When taking out
the cartridge,
toner leaks?
Toner leaks and toner
material dropped onto
the paper
→
Replace the
AIO
YES
Is it regular
interval of 75.4
mm?
Does the same
problems persist?
END
Bad image
removes by
scratching?
Remove obstacles stuck
on OPC drum's surface
Perform the OPC
cleaning using the
control panel buttons.
Check toner is stuck
onto the P/R or H/R in
fusing unit
→
Clean it or replace
The problem occurred
since the obstacles
stuck to charge roller
→
Replace the AIO
The problem randomly
occurred due to the
toner fallen
→
Clean the machine
NO
YES
YES
NO
H911T919.WMF
