Konica Minolta Magicolor 7450 II User Manual page 206

This message...
UNKNOWN PAPER
TRAY X
DEVICE
NOT SUPPORT
HUBS
NOT SUPPORT
WASTE TONER
NEAR FULL
192
means...
The media size
cannot be detected
automatically.
A USB device incom-
patible with this
machine is con-
nected.
A USB hub is con-
nected to this
machine.
The waste toner bot-
tle is nearly full.
Status, Error, and Service Messages
do this...
Use media of a size that
can be detected by the
printer. Otherwise,
adjust the media guides
in the tray to a position
where the media size
can be recognized.
Disconnect the USB
device from this
machine.
This machine is not
compatible with a USB
hub. When connecting
USB cables to this
machine, do not use a
USB hub.
Prepare a new waste
toner bottle.