Brother MFC-J4340DW Online User's Manual page 447

Error Message
Cannot Print XX
Cannot Detect
Cannot Detect Ink
Cannot Scan XX
Comm. Error
Connection Error
Connection Failed
Cause
A foreign object, such as a paper clip or a
piece of ripped paper, is in the machine.
An ink cartridge is not installed correctly.
If you are using non Brother Original ink,
the machine may not detect the ink
cartridge.
The wrong Brother model ink cartridge
was installed.
If you are using non Brother Original ink,
the machine may not detect the ink
volume.
The machine has a mechanical problem.
Poor telephone line quality caused a
communication error.
Other devices are trying to connect to the
Wi-Fi Direct network at the same time.
The Brother machine and your mobile
device cannot communicate during the
Wi-Fi Direct network configuration.
Action
inside the machine. If the error message
continues, disconnect the machine from
the power for several minutes, and then
reconnect it.
See Related Information: Paper is
Jammed Inside and in the Front of the
Machine (Jam Inside/Front).
If you cannot print documents and
received faxes, transfer them to another
fax machine or to your computer before
disconnecting the machine so you will not
lose any important messages. Then,
disconnect the machine from the power
for several minutes and reconnect it.
See Related Information: Transfer Your
Faxes or Fax Journal Report.
Take out the new ink cartridge and
reinstall it slowly and firmly until it locks
into place.
See Related Information: Replace the Ink
Cartridges.
Replace the ink cartridge with a Brother
Original ink cartridge. If the error message
remains, contact Brother customer service
or your local Brother dealer.
Check the model numbers of the ink
cartridges and install the correct ink
cartridges.
Replace the ink cartridge with a Brother
Original ink cartridge. If the error message
remains, contact Brother customer service
or your local Brother dealer.
Disconnect the machine from the power
for several minutes, and then reconnect it.
If you cannot print documents and
received faxes, transfer them to another
fax machine or to your computer before
disconnecting the machine so you will not
lose any important messages. Then,
disconnect the machine from the power
for several minutes and reconnect it.
See Related Information: Transfer Your
Faxes or Fax Journal Report.
Send the fax again or connect the
machine to another telephone line. If the
problem continues, contact the telephone
company and ask them to check your
telephone line.
Make sure there are no other devices
trying to connect to the Wi-Fi Direct
network, and then try to configure the Wi-
Fi Direct settings again.
• Move the mobile device closer to your
Brother machine.
• Move your Brother machine and the
mobile device to an obstruction-free
area.
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