I have a brother MFC 9440CN when I try to scan a document the error message comes up as not being connected to pc. The cable is definitly connected as the print option works fine. Can you help. Thank you.

driver error by the sounds. download the latest driver and re-install the macine

THERE ARE A COUPLE OF SOLUTIONS HERE.

1) With a clean cloth or compressed air clear the sensor are on both cartridge and area around where cartridge plugs in.

2 Check for blockage in cartridge

3) Try a new Yellow cartridge

For some reason when you are not able to scan an item of yours. To fix Brother Printer Error TW006 which has arrived with the scanner when scanning with the ControlCentre 3. When you try solving to scan a document using Brother ControlCenter 3 software but it failed to connect to Brother Printer. Interesting thing is when you attempt to configure the device remotely using same Brother ControlCenter 3 it worked actually without any issues. Initially there can be some form of firewall issue either on computer system however that was not the issues. As you are trying to scan a document from the ControlCenter, the following error message may occur under certain circumstances "No connection to the device is possible [TW006]". Printing is, never possible without problems.
If your device is switched on and ready for operation, this can be a problem with the DNS resolution. Even if the MFC has been installed using fixed IP, as recommended above, the scanner app may use the node name. This leads to this problem under certain circumstances. As the problem, usually comes in the MFC Model of Brother Printer. Connect to http://www.brotherprintersupportnumber.com/
for more clear understanding of the issue.

Follow the steps to troubleshoot the Brother Printer TW006:
Step1: Make sure your computer device is not using multiple network connection
Step2: Reset the Twain Settings using the Twain Reset Tool
Step3: Enable the Windows Image Acquisition service in the registry
Step4: Reinstall thebrother machine software and drivers

The steps mentioned in above section should be sufficient to fix the error code TW006 but in case you fail for immediate and instant you can call Brother Printer Customer Support Number 1-800-213-8289. Brother Printer Support Phone Number 18002138289 Repair Service

check out these solutions for the same problem

Brother MFC 9449CN CC3 205 03031f04 error message Scanner is unable to...

Take the cover off of the ADF, rub clean the rollers with a damp cloth. Make sure there is no paper stuck in the area Also, check that the sensor flags are activating. just move them back and they should bounce back to normal position. Cleaning should do the trick.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Thanks, Joe

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

If you want to reset your Brother MFC 9440N machine so you no longer have the error message: Toner End of Life, do the following:

1. Open the front cover of the 7820N, that is, the cover that allows you to pull out the toner and drum, but don't pull out the drum/toner.
2. Push the button: Options (located on the left of the control pad).
3. Type: *00 on the keypad.

The Brother MFC 9440N should be reset and the Toner End of Life message should disappear. Warning, this may void your warranty and ultimately damage your machine if you are reusing or refilling your cartridges, but you should already know that. Hope this helps.

Hi there maximum time we found it is a the head problem. The print head is what the cartridges sit in inside of the printer. For resolve the problem please follow these.

Open the printer and wait for the carriage to slide over. Some how if its not come then Unplug the printer & Manually slide the carriage.
Now Remove the ink cartridges from the print head & Use wet warm cotton swab or use alcohol to thoroughly clean the print head.
Repeat this until there is no ink residue coming off on the cotton swab. After finished it make the head dry then fix it back. Now Try to print something now
If that does not work then follow the next step.

Remove the printer data cable & restart the PC & printer. Then fit back the data cable & turn on the printer. Hope that's start working , if no luck then Uninstall the printer driver & restart the PC & Printer both again. Now install the driver of the printer and connect it with PC ,Turn on printer & go for a test print from the printer preference. Thanks & waiting for your reply.

try seting the paper to A4 not leter

The Brother All-In-Ones require the Brother control panel software to be loaded on a PC before you can successfully scan a document. You can download the software for either PC or Mac from www.brother-usa.com - Good luck!

Try this link for your solution...is related to 3A...

http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/002500/000055/faq002555_001.html?reg=us&c=us&lang=en&prod=mfc9440cn_all&Cat=11