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Posted on Jan 02, 2017
I believe the "relay Unit" on that machine is the section that transports copies to either the finisher (if installed) or the exit tray on the LEFT side of that machine. Sometimes neither of these units are present, but the relay unit may still be installed.
There are 2 flip up covers on that section (left and right), and you will probably see that one of them (usually the left one) has come unclipped, or perhaps the plastic clip that holds it closed is broken. If you flip up this unit. You will see a black button at the back end that is engaged when ther unit is closed. If you simply pree this button with your finger, hopefully the message will go away - this may at least help you troubleshoot what is causing the "cover open" message). Even if the clip is broken, it is often just a matter of seating the unit correctly so that the switch is engaged when the unit is closed. There is also the same switch on the right cover that could be causing the problem, but this cover doesn't sem to get damged as often.
I hope this helps. Please let me know.
Posted on May 26, 2009
The plotter cover is the piece that you press down when installing a new roll of masters. it is located on the top right of the machine.
Posted on May 27, 2009
SOURCE: Brother MFC 7220 fax is
This error massage shows up when there's paper jam in the back of the machine. If the door is securely closed and the error persists, I would recommend you to check for jammed paper in the back of the machine. To do this, please follow this LINK and follow the step by step instructions. You'll find the detailed instructions with illustrations.
I would also suggest you to use a blower (or you can also use a vacuum cleaner). Remove the cartridge/s and drum, open both the front and the back door, and then blow through the passage from front to back or from back to front. Repeat the process several times and do this while the printer is Off or while it's turning On or after it's turned On.
You can also do some manual cleaner if the problem persists. Clean all the rollers. You'll find the instructions HERE.
Note: Both the links will open up as pdf file in your browser, if you wish to download, on the page, click the "File" just below the "Google Docs" logo and select "Download Original".
Let me know if you need further help.
Thanks for using FixYa.
Posted on Mar 01, 2011
It could be that the cover sensor is stuck or could also be due to the cartridges in the printer. Please follow the steps below on how to identify and fix the problem:
Posted on Sep 13, 2011
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