Brother MFC-J3720 User Manual (English)

Other manuals for Brother MFC-J3720

Service Manual365 pages

Quick Setup Guide44 pages

Product Safety Guide24 pages

Safety Guide20 pages

Questions and Answers:

J
Joseph GonzalezSep 5, 2025
How to fix 'Touchscreen Init. Failed' error on Brother All in One Printer?
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  david40Sep 5, 2025
  If your Brother All in One Printer displays 'Touchscreen Init. Failed', it may be because: * The Touchscreen was pressed before the power on initialization was completed. Make sure that nothing is touching or resting on the Touchscreen, especially when plugging the machine in. * Debris may be stuck between the lower part of the Touchscreen and its frame. Insert a piece of stiff paper between the lower part of the Touchscreen and its frame and slide it back and forth to push out the debris.
T
Thomas FisherAug 25, 2025
Why is my Brother All in One Printer only printing B&W and asking to replace ink?
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  Clayton MayAug 25, 2025
  If your Brother All in One Printer is only printing in B&W 1-sided and prompts you to replace ink, it indicates that one or more of the color ink cartridges have reached the end of their life. Replace the ink cartridges, as the machine will stop all print operations until a new ink cartridge is installed.
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perezamberAug 25, 2025
How do I fix a 'Paper Jam [Front]' error on my Brother All in One Printer?
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  Cassandra MaddenAug 26, 2025
  If your Brother All in One Printer displays a 'Paper Jam [Front]' error, it means the paper is jammed inside the machine. Remove the jammed paper. Also, make sure the paper length guide is set to the correct paper size.
M
Michael SchneiderAug 26, 2025
How do I clear a paper jam from the front and rear of my Brother MFC-J3720 All in One Printer?
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  Mary TuckerAug 27, 2025
  If your Brother All in One Printer displays a 'Paper Jam [Front,Rear]' error, it means the paper is jammed inside the machine. Remove the jammed paper. Make sure the paper length guide is set to the correct paper size.
K
kristen41Aug 27, 2025
What to do if my Brother MFC-J3720 is not feeding paper?
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  Gregory RodriguezAug 27, 2025
  If your Brother All in One Printer is not feeding paper, it could be due to several reasons: * The machine is out of paper, or paper is not correctly loaded in the paper tray. Refill the paper or remove and reload the paper. * The paper tray was not fully inserted. Remove the paper tray and re-install it until it locks into place. * The paper was not inserted in the centre position of the manual feed slot. Remove the paper and re-insert it in the centre of the manual feed slot. * The Jam Clear Cover is not closed correctly. Make sure the Jam Clear Cover is closed evenly at both ends. * Paper dust has accumulated on the surface of the paper pick-up rollers. Clean the paper pick-up rollers. * The paper is jammed in the machine. Remove the jammed paper.
S
sreyesAug 28, 2025
What does 'Out of Memory' mean on my Brother MFC-J3720 All in One Printer and how to fix it?
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  Bruce WarnerAug 28, 2025
  If your Brother All in One Printer shows an 'Out of Memory' error, it means the machine's memory is full. If a fax-sending or copy operation is in process, you can press , Quit or Close and wait until the other operations that are in process finish, and then try again. Alternatively, press Send Now to send the pages scanned so far or press Partial Print to copy the pages scanned so far.
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Mario FowlerSep 9, 2025
What does 'Ink Absorber Full' mean on my Brother MFC-J3720 All in One Printer?
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  Craig MillerSep 9, 2025
  If your Brother All in One Printer displays 'Ink Absorber Full', it means the ink absorber box or flushing box is full. The ink absorber box or flushing box will need to be replaced. Contact Brother Customer Service or your local Brother Authorised Service Centre to have your machine serviced.
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nichole66Sep 6, 2025
What does 'Media is Full' mean on my Brother MFC-J3720?
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  Christopher CarrollSep 6, 2025
  If your Brother All in One Printer displays 'Media is Full', it could be due to: * The memory card or USB Flash drive you are using already contains 999 files. Your machine can only save if it contains less than 999 files. Delete unused files and try again. * The memory card or USB Flash drive you are using does not have enough free space to scan the documents. Delete unused files from your memory card or USB Flash drive to make some free space, and then try again.
E
Emily HodgesSep 4, 2025
What to do if my Brother All in One Printer shows 'Unable to Clean', 'Unable to Initialize' or 'Unable to Print'?
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  Justin ButlerSep 4, 2025
  If your Brother All in One Printer displays 'Unable to Clean XX', 'Unable to Initialize XX', or 'Unable to Print XX', it could be due to a mechanical problem or a foreign object inside the machine. Open the scanner cover and remove any foreign objects and paper scraps from inside the machine. If the error message continues, disconnect the machine from the power for several minutes, and then reconnect it.
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Joseph CamachoSep 2, 2025
Why does my Brother MFC-J3720 All in One Printer say 'Cover is Open'?
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  Nicole RamseySep 2, 2025
  If your Brother All in One Printer shows 'Cover is Open', it means either: * The scanner cover is not locked in the closed position. Lift the scanner cover, and then close it again. * The ink cartridge cover is not locked in the closed position. Firmly close the ink cartridge cover until it locks into place.

Brother MFC-J3720 Specifications

General

Print Technology	Inkjet
Maximum Paper Size	A3
Automatic Document Feeder	Yes
Duplex Printing	Yes
Functions	Print, Copy, Scan, Fax
Scanner Type	Flatbed, ADF
Mobile Printing	Yes
Fax Speed	33.6 kbps
Connectivity	USB, Ethernet, Wi-Fi
Maximum Printing Resolution	1200 x 6000 dpi
Scan Resolution	Up to 2400 x 2400 dpi
Fax Transmission Speed	3 seconds per page
Display	2.7" Touchscreen LCD