The scanner lid of these units can be removed, but there is nothing that can be addressed when it's opened except replacing the entire scanner bar.
The bar is positioned not by a switch, but by the bar moving under a white reflecting surface on the bottom of the glass. If the scanner cannot sense this white strip, it bumps against the end of the lid until the error is generated. The failure indicates a failure in the scanner bar or the circuit it is connected to.
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I found the following post on another site. It appears to work.
If you want to reset your Brother MFC 7820N 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 7820N 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.
I have put a PDF files on my website for you to download. Just click on the links it will download for you. It got all you need to know in this file. You can read it on site and print it strait off the website or save it to your PC then print it out. Click LINK= http://www.4all2sell.com/pdf/Brother-DCP-7010L-DCP-7025-MFC-7225N-MFC-7420-MFC-7820N-Manual.pdf You will need a adobe reader to see this file If you not got an Pdf reader you can download it off this link free. http://www.adobe.com/products/reader/ Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks
All files on my website are only there for a limited time.
You need to clean the scanner glass. Also known as the strip glass. It is a 1 inch wide strip of glass that runs from the front to the back. Your documents pass over this glass when they are scanned. Some of the wax crayon probably smeared off onto the glass and now when you scan the scanner sees these marks as stationary and thus records them as solid lines. Just look into the scanner section where your documents are fed in or depending on model, some are just to the left of the large original glass.
Good Luck and thank you for using Fixya.
It's the same scanner ccd, after you make sure the narrow scanner window is clean, you need to power down the machine and power up again so it will calibrate to a clean window, if it has a scratch like from a staple, you will need a new glass.
I had work done on my laptop. I have a Brother MFC 7820N printer, scanner,fax,copier. I cannot find my cd for setting the drivers to have my laptop use the 7820N. Where can I pull the information down on line to enable my laptop to use my printer?