20 Most Recent Brother MFC 8420 All-In-One Laser Printer Questions & Answers

error code 78 model 8420 mfc

Error 74 is Toner Empty. Your machine sounds like it needs a good cleanout inside:
(USE GLOVES AND A MASK) Take it apart slowly bit by bit, use compressed air liberally, when you've gone as far as you dare then put it back together slowly bit by bit and use the air again anywhere you think you'd missed, then turn on and voila! (fingers crossed for you pal, this can be laborious and annoying, but you'll get there)

mfc 8420 error machine 6b

error machine 6b

Hi, .inf are product information files and tells the computer the specific brand/model and drivers needed for your all-in-one and are OS specific. They are normally found inside a folder named DRIVER with other files such as .cab, .dll, .sys, etc. The installer sometimes compresses all of these files in an .exe, .zip or .rar to reduce file sizes. Double clicking on the download compressed/installer will expand or auto-install. Your download must match the brand/model of the all-in-one and your operating System, XP, Vista etc. Your drivers/installers may be found here > welcome.solutions.brother.com/bsc/public/us/us/en/dlf/download_top.html?reg=us&c=us&lang=en&prod=mfc8420_us Hope this be of some help to you. Pls post again how things turn up or if we can be of further assistance. Cheers.

The only way to diagnose is to remove covers and trace the noise to the source. It will be a nylon cog that has jammed, moved or become worn. https://www.google.com/search?q=Brother+MFC-L8690CDW+Laser+Printer.+The+scanner+is+making+a+clicking%2Frattling+noise ..

check the continuty in scanner cable to cis unit and check the continuity 2ends off scanner cable. 1.cable problem 2cis problem

http://www.brother-usa.com/FAQs/Solution.aspx?FAQID=200000029767#.U3uq__RDtf0

You can reset the toner cartridges via the printer's menu.

• if an error message appears on the LCD display, press the Cancel (X) button to show the main menu.
• Press the Fax button to make the numeric keypad visible. Then, locate and only locate the Asterisk (Star) button on the numeric keypad. It is important to remember its location as it will not be lit up later when needed.
• Press the Home button to return to the main menu.
• Open the front cover of the printer (to access cartridges).
• With the front cover open, press and hold the unlit Asterisk (Star) button for 5 seconds.
• The reset menu will now appear on the LCD display.
• Scroll through the menu to select a color and yield to reset.
• The LCD will read "Accepted" once the reset is complete.

http://www.zinetic.co.uk/brother_mfc_9140cdn_toner_refill_kit-news.aspx

Try scanning at a lower DPI setting. The machine is only rated to a certain DPI which is how much information it can handle per inch. Lower the DPI the more pixilated an image you get becomes when blown up but unless you are planning on printing 6/4 photos in A3 size then 600-1200 DPI is plenty.

The scanner unit is faulty or the flat harness was not fitted properly to the main board.

There is no such error code. Please check again

Load the envelopes in like paper, tell the printer the size of these to set the paper size, then whatever you're using to print on the envelopes, set up the page size the same size as the envelopes. You should then be able to print on envelopes

Brother MFC 9840CDW 2A error

Replace Fuser Message and Reset Brother MFC 8460 8860 8870 DCP8060

1. Unscrew these three 12.1mm screws holding the control panel in place. 2. Lift up the front panel from the device. 3. Before removing the unit, apply 2 or 3 pieces of tape to secure the top and bottom of the unit. Visit my computer

Hello there:
for the document you want to print click on print and your printer should show up now just click on the printer and look down where it says use printer offline and click on it again and than it will say use printer online and just print from there ok please dont forget to rate this solution for me
best regards mike

Right-click on the printer in the folder and uncheck the "Use Printer Offline" option to place your printer online and available.

Try universal uninstalling printer, thethen run found new hardware wizard.