User Manual
Table Of Contents
- Basic User’s Guide MFC-J4320DW MFC-J4420DW
- Brother numbers
 - Ordering accessories and supplies
 - Notice - Disclaimer of Warranties (USA and Canada)
 - Compilation and Publication Notice
 - You can use the following features!
 - User's Guides and where to find them
 - The Online User’s Guide helps you get the most out of your machine.
 - If you have questions or problems, please take a look at your model’s FAQs.
 - Table of Contents
 - 1 General information
 - 2 Loading paper
 - 3 Loading documents
 - 4 Printing from a computer
 - 5 Copying
 - 6 Scanning to a computer
 - 7 PhotoCapture Center: Printing photos from a USB flash drive
 - 8 Telephone services and external devices
 - 9 Sending a fax
 - 10 Receiving a fax
 - A Routine maintenance
 - B Troubleshooting
 - Index
 - Supplies
 - brother USA/CAN
 
 
Troubleshooting 
41
B
Ink Low One or more of the ink cartridges are 
near the end of their life. If one of the 
color ink cartridges is near the end of 
its life and someone is sending you a 
color fax, your machine’s 
“handshake” will ask that the fax be 
sent as black and white. If the 
sending machine has the ability to 
convert it, the color fax will be printed 
at your machine as a black and white 
fax.
Order a new ink cartridge. You can 
continue printing until the 
Touchscreen displays 
Cannot Print.
(See Ordering accessories and 
supplies on page ii.) To replace the 
ink cartridges, see Online User’s 
Guide: Replace the Ink Cartridges.
Low Temperature The room temperature is too low. After warming the room, allow the 
machine to warm up to room 
temperature. Try again when the 
machine has warmed up.
Media is Ful l. The USB flash drive you are using 
already contains 999 files.
Your machine can save to your USB 
flash drive only if it contains less than 
999 files. Delete unused files and try 
again.
The USB flash drive you are using 
does not have enough free space to 
scan the document.
Press .
Delete unused files from your USB 
flash drive to make some free space, 
and then try again.
No Caller ID There is no incoming call history. You 
did not receive calls or you have not 
subscribed to the Caller ID service 
from your telephone company.
If you want to use the Caller ID 
feature, call your telephone company.
(See Online User’s Guide: Caller ID.)
No Ink Cartr idge An ink cartridge is not installed 
correctly.
Take out the new ink cartridge and 
re-install it slowly and firmly until it 
latches.
(See Online User’s Guide: Replace 
the Ink Cartridges.)
Error Message Cause Action










