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TROUBLESHOOTING PROCEDURES
16-2
MFC 4550/6550MC/7550MC
OP-US-5.0
Maintenance
Error Messages
Occasionally, you may have a problem with your MFC or telephone line. If this
happens, your MFC usually identifies the problem and displays an error message.
Refer to the following list when you see an error message on the display.
Error messages are listed below in alphabetical order.
This means an overflow of the input data
buffer. Press FF/Cont. Data that overflowed
the buffer will not be printed.
Check the communication parameter settings
such as handshake protocol on both your
computer and MFC.
If the error occurs again, the interface hardware
may be damaged, so consult with your dealer.
You can clear a print quality problem by
replacing the drum unit with a new one if the
display shows CHANGE DRUM. The drum
unit is at the end of its life.
If the display shows CHANGE TONER and at
the same time the Toner Empty LED on the
control panel flashes on and off, you can still
print. But the toner is depleted and it is telling
you that the toner will soon run out. Order a
new toner cartridge now.
The toner is used up and printing is not possible.
Replace the toner cartridge with a new one.
(See page 13-1~4)
The machine is out of paper or the paper is not
properly loaded in the multipurpose sheet
feeder. Refill the paper or remove the paper
and load it again.
Your Recording Paper Size setting may not be
set correctly for the recording paper you are
using (see page 6-7). When you see this error,
the reduction ratio automatically will be
changed to AUTO if you have used a fixed
reduction ratio (see page 6-8~9).
BUFFER ERROR
B
CHANGE DRUM
C
CHANGE TONER
CHANGE TONER
TONER EMPTY
CHECK PAPER SIZE
CHECK PAPER