To Next PageTo Next PageWhat does 'Drum End Soon' mean on Brother All in One Printer?
If your Brother All in One Printer displays 'Drum End Soon', replace the drum unit with a new one. This is because the drum counter has reached its upper limit.
Why is the print condensed on my Brother MFC-7840W?
Condensed print is usually caused by a poor telephone connection. Ask the other party to send the fax again.
How to clear paper jam in the rear of Brother MFC-7840W All in One Printer?
To resolve a 'Paper jam in the rear of the machine' error on your Brother All in One Printer, open the back cover and remove the jammed paper.
Why does my Brother All in One Printer beep when accessing Setup Receive and Setup Send menus?
If the Fax key is not illuminated, press it to turn on Fax mode.
What to do if my Brother MFC-7840W prints unexpectedly or prints garbage?
If your Brother All in One Printer prints unexpectedly or prints garbage, pull out the paper tray and wait until the machine stops printing. Then, turn off the machine and disconnect from the power for several minutes.
Why can't I perform ‘2 in 1’ or ‘4 in 1’ printing on my Brother MFC-7840W All in One Printer?
Check that the paper size setting in the application and in the printer driver are the same.
What to do if my computer cannot find my Brother MFC-7840W All in One Printer?
For Windows® users: The firewall setting on your PC may be rejecting the necessary network connection. For Macintosh® users: Re-select your machine in the Device Selector application.
How to fix vertical black lines when receiving faxes on my Brother MFC-7840W All in One Printer?
If you're seeing vertical black lines when receiving faxes, the corona wire for printing may be dirty, so clean the corona wire. The sender’s scanner may also be dirty, ask the sender to make a copy to see if the problem is with the sending machine. Try receiving from another fax machine.
How to remove vertical black line in copies from Brother MFC-7840W?
Black vertical lines on copies are typically caused by dirt or correction fluid on the glass strip. Clean the scanner glass. The corona wire for printing may also be dirty, so clean the corona wire as well.
Why Brother MFC-7840W All in One Printer does not load paper and shows 'No Paper' or 'Paper Jam'?
If your Brother All in One Printer displays 'No Paper' or a 'Paper Jam' message, here's what you can do: * If there is no paper, load a new stack of paper into the paper tray. * If there is paper in the paper tray, make sure it is straight. * If the paper is curled, you should straighten it; sometimes it is helpful to remove the paper, turn the stack over, and put it back into the paper tray. * Reduce the amount of paper in the paper tray, and then try again.
General| Print technology | Laser |
|---|---|
| Maximum resolution | 600 x 2400 DPI |
| Time to first page (black, normal) | 10 s |
| Print speed (black, normal quality, A4/US Letter) | 22 ppm |
| Grayscale levels | 256 |
| Input color depth | 24 bit |
| USB port | Yes |
| Standard interfaces | USB 2.0 |
| USB 2.0 ports quantity | 1 |
| Dimensions (WxDxH) | 428 x 396 x 304 mm |
| Networking features | 10/100 Base-TX Ethernet |
| Wireless technology | IEEE802.11b/g |
| All-in-one functions | Copy, Fax, Scan |
| Color all-in-one functions | scan, n |
| Compatible operating systems | Windows Vista/XP-Home/2003/2000 Mac OS X 10.2.4 & later Linux printer driver |
| Copier resize | 25 - 400 % |
| Maximum copy resolution | 600 x 600 DPI |
| Maximum number of copies | 99 copies |
| N-in-1 copy function (N=) | 2, 4, 9, 16, 25 |
| Copy speed (black, normal quality, A4) | 22 cpm |
| Faxing | Mono faxing |
| Fax memory | 500 pages |
| Fax coding methods | MH, MMR (Fax coding method), MR |
| Fax speed dialing (max numbers) | 200 |
| Maximum input capacity | 250 sheets |
| Multi-Purpose tray input capacity | 1 sheets |
| Auto document feeder (ADF) input capacity | 35 sheets |
| Internal memory | 32 MB |
| Sound power level (standby) | 32 dB |
| Sound pressure level (printing) | 53 dB |
| Media weight (tray 1) | 60 - 105 g/m² |
| ISO A-series sizes (A0...A9) | A4, A5, A6 |
| ISO B-series sizes (B0...B9) | B5, B6 |
| Maximum ISO A-series paper size | A4 |
| Multi-Purpose Tray media weight | 60 - 163 g/m² |
| Supported network protocols (IPv4) | IPv4, IPv6 |
| Sustainability certificates | ENERGY STAR |
| Power consumption (standby) | 75 W |
| Power consumption (PowerSave) | 12 W |
| Power consumption (average operating) | 320 W |
| Package weight | 13.400 g |
| Market positioning | Home & office |
