Message Causes Solutions
"Internal cooling fan is
active."
Large print runs will cause
the machine's interior to heat
up, triggering the cooling
fan. The fan will
automatically begin running
when the print run reaches
approximately 3,000 sheets
of A4 , or 1,500 sheets of
A3 .
The fan will run for about 30 minutes.
The fan will emit noise, but this is
normal and the machine will be
operable while the fan is running.
The amount of paper that can be
printed and the total operation time
until the fan starts running depends on
the temperature of the location at
which the machine is installed.
"Self checking..." The machine is performing
image adjustment
operations.
The machine may perform periodic
maintenance during operations. The
frequency and duration of
maintenance depends on the humidity,
temperature, and printing factors such
as number of prints, paper size, and
paper type. Wait for the machine to
get ready.
When There Is a Problem Scanning or Storing Originals
Message Causes Solutions
"Cannot detect original size.
Select scan size."
The machine failed to detect
the size of the original.
• Place the original correctly.
• Specify the scan size, and then
place the originals again. For
details about the settings for when
fax function is being used, see
"Scan Settings", Fax .
• When placing an original directly
on the exposure glass, the lifting/
lowering action of the ADF
triggers the automatic original
size detection process. Lift the
ADF by 30 degrees or more.
10. Troubleshooting
218
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