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76 Troubleshooting
LCD Cannot Be Seen At All
An Unintended Language Is Displayed on the LCD
“The following ink tank cannot be
recognized.”
U043
U140
U150
z The ink tank is not installed. Install the ink tank.
See “Replacing an Ink Tank” on page 50.
z The ink tank is not compatible with this machine. (The lamp on the ink tank is
off.)
Install an appropriate ink tank.
See “Replacing an Ink Tank” on page 50.
z An ink tank error has occurred. (The lamp on the ink tank is off.)
Replace the ink tank.
See “Replacing an Ink Tank” on page 50.
“****
Printer error has occurred.
Turn off power then back on again. If
problem persists, see the manual.”
Turn off the machine, and unplug the power cord of the machine from the power
supply. After a while, plug the power cord of the machine back in, and then turn
on the machine. If the same error occurs, contact a Canon service
representative.
“Scanner is not operating correctly.” Turn off the machine, and unplug the power cord of the machine from the power
supply. After a while, plug the power cord of the machine back in, and then turn
on the machine. If the same error occurs, contact a Canon service
representative.
“Release the scanner lock switch and
turn the power off and back on.”
The Scanner Lock Switch is not released. Slide the Scanner Lock Switch to the
release position and press the ON/OFF button to turn the machine off.
Then, turn the power back on.
If this error still remains, contact a Canon service representative.
“The card is currently write-enabled.
Set to read-only mode before
performing operation.”
The Card Slot is set to USB enabled or LAN enabled.
You cannot print when the Card Slot is set to USB enabled or LAN enabled.
After writing on the memory card, set to Read-only mode again.
“An unsupported USB hub is
connected.
Remove the hub.”
If a PictBridge compliant device is connected via a USB hub, remove the hub
and connect it directly to the machine.
Cause Action
The machine is not powered on or the
LCD is in the screen-saver mode.
z If the Power lamp is off
The machine is not powered on. Connect the power cord and press the ON/
OFF button. The machine will power on and the LCD will display a message.
z If the Power lamp is lit
The LCD may be in the screen-saver mode. On the Operation Panel, press a
button other than the ON/OFF button.
Cause Action
The language you want to be displayed
is not selected.
Select the language you want to be displayed according to the following
procedure.
(1)Press the HOME button. Wait for about 5 seconds, select , and then
press the OK button.
(2)Press the ] button to select , then press the OK button.
(3)Press the } button five times, then press the OK button.
If the Bluetooth unit is connected to the machine, press the } button six
times, and then press the OK button.
(4)Use the { or } button to select the language you want to be displayed, then
press the OK button.
Message Action