When Other Messages Appear
Message Cause Solution
"Failed to read the PDF file." There is a possibility that the
PDF version is not supported
by the browser’s PDF viewer
or an unsupported
encryption level is specified.
With this machine’s browser PDF files
other than those whose versions and
encryption levels are specified below
cannot be viewed.
• PDF version: 1.3-1.7
• PDF encryption level: 128Bit AES
or 256Bit AES
"Clean the scanning glass.
(Located next to the
exposure glass.)"
The scanning glass or
scanning glass of the ADF is
dirty.
Clean the scanning glass or scanning
glass of the ADF. See "Maintaining
Your Machine", Maintenance and
Specifications.
"Currently printing at low
speed due to low voltage
power supply."
Printing has slowed down
because the power supply
voltage is low.
This is not a malfunction. You can
continue printing although the printing
speed is low.
"Internal cooling fan is
active."
Large print runs will cause
the machine's interior to heat
up, triggering the cooling
fan.
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.
"Printing was stopped due to
the power supply being low
voltage. Turn the main
power switch off then on."
Printing has stopped
because the power supply
voltage is low.
Turn off the power, and then turn it on
again.
"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
resume operation.
When Other Messages Appear
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