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 
37
B
Error and maintenance messages B
As with any sophisticated office product, errors may occur and supplies must be replaced. If this 
happens, your machine identifies the error or required routine maintenance and displays the 
appropriate message. The most common error and maintenance messages are shown in the 
table.
Error Message Cause Action
B&W 1-sided Print Only
Replace ink.
One or more of the color ink 
cartridges have reached the end of 
their life.
You can use the machine in 
black and white mode for 
approximately four weeks depending 
on the number of pages you print.
While this message appears on the 
Touchscreen, each operation works 
in the following way:
 Printing
If the media type is set to 
Plain Paper in the Basic tab and 
Grayscale is chosen in the 
Advanced tab of the printer 
driver, you can use the machine 
as a black and white printer.
2-sided print is not available when 
this message appears.
 Copying
If the paper type is set to 
Plain Paper you can make 
copies in black and white.
2-sided copy is not available 
when this message appears.
 Faxing
If the paper type is set to 
Plain Paper or 
Inkjet Paper, the machine will 
receive and print the faxes in 
black and white.
If a sending machine has a color 
fax, the machine’s “handshake” 
will ask that the fax be sent as 
black and white.
Replace the ink cartridges.
(See Online User’s Guide: Replace 
the Ink Cartridges.)
NOTE
The machine will stop all print 
operations and you will not be able to 
use the machine until you change to a 
new ink cartridge in the following 
cases:
• If you unplug the machine or take 
out the ink cartridge.
• (Windows
®
) If you select 
Slow Drying Paper in the Basic 
tab of the printer driver. 
(Macintosh) If you select 
Slow Drying Paper in the 
Print Settings drop-down list of 
the printer driver.










