Brother DCP-720 Laser Printer - Error Message Answer to Blog Comment
Kelly left a comment yesterday in our post “Troubleshooting Options for your Brother Printer” The request was the following :
My Brother DCP 7020 laser printer won't work. It keeps saying the back cover is open, please close it. But the cover is closed! What's up with that?
Because we wanted to give you a thorough answer Kelly here is what Brother would tell you:
If the Brother DCP 7020 was turned off and then turned on again with a paper jam in the back of the machine, you’ll find a message in the LCD saying: “Back Cove Open”. So in order to solve the problem follow this steps:
Step 1: Open the front cover
Step 2: Pull out the drum unit and toner cartridge assembly.
Step 3: Open the back cover.
Step 4: Pull the tab toward you to open the rear chute cover.
Step 5: Pull the paper jammed inside out of the fuser unit. If by any chance it cannot be pulled out easily, push down the tab with one hand as you gently pull out the paper with the other hand.
Step 6: Close the back cover.
Step 7: Insert the drum unit and toner cartridge assembly back inside.
Step 8: Close the front cover.
This should clear the error message, but in case it is not power off the Brother DCP 7020 laser printer.
Note: This message may appear even if you don’t have a paper jam. The reason is that you probably installed a new toner cartridge or drum unit wrong. So reinstall your toner cartridge and or drum unit properly.
However obviously that might not clear the problem completely so here is another thing you can try….
There is a black guide plate that opens partially when you open the back door, there's a sensor flag on that cover that goes through the right side to a sensor, the arm on the guide needs to move freely, and the flag on the right must pass through the sensor inside a hole on the right... so go back to the back door and try to look for the sensor, it has a small lever that goes back and fort check if it is not misaligned.
source, source
My Brother DCP 7020 laser printer won't work. It keeps saying the back cover is open, please close it. But the cover is closed! What's up with that?
Because we wanted to give you a thorough answer Kelly here is what Brother would tell you:
If the Brother DCP 7020 was turned off and then turned on again with a paper jam in the back of the machine, you’ll find a message in the LCD saying: “Back Cove Open”. So in order to solve the problem follow this steps:
Step 1: Open the front cover
Step 2: Pull out the drum unit and toner cartridge assembly.
Step 3: Open the back cover.
Step 4: Pull the tab toward you to open the rear chute cover.
Step 5: Pull the paper jammed inside out of the fuser unit. If by any chance it cannot be pulled out easily, push down the tab with one hand as you gently pull out the paper with the other hand.
Step 6: Close the back cover.
Step 7: Insert the drum unit and toner cartridge assembly back inside.
Step 8: Close the front cover.
This should clear the error message, but in case it is not power off the Brother DCP 7020 laser printer.
Note: This message may appear even if you don’t have a paper jam. The reason is that you probably installed a new toner cartridge or drum unit wrong. So reinstall your toner cartridge and or drum unit properly.
However obviously that might not clear the problem completely so here is another thing you can try….
There is a black guide plate that opens partially when you open the back door, there's a sensor flag on that cover that goes through the right side to a sensor, the arm on the guide needs to move freely, and the flag on the right must pass through the sensor inside a hole on the right... so go back to the back door and try to look for the sensor, it has a small lever that goes back and fort check if it is not misaligned.
source, source
Posted by Karla Arostegui - Content Mgr. at 9/18/2009 5:58 AM 
Categories: Ink and Toner Cartridges:Brother Printer Ink
Tags: Laser Printer Paper Jam solutions Brother DCP 7020
Categories: Ink and Toner Cartridges:Brother Printer Ink
Tags: Laser Printer Paper Jam solutions Brother DCP 7020
When the above did not work for me. I pulled everything out again and saw that there was a tiny piece of paper under the browny red roller. I could not reach it but was able to blow it out. Put the drum piece back in and closed the doors. The error was gone.
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Thanks for sharing Jan, it is important in case it happens to someone else!
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I have wanted to post something like this on my website and this gave me an idea. Cheers..
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It was extremely interesting for me to read that article. Thanks for it. I like such themes and everything that is connected to them. I would like to read more soon.
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I do know this isn’t exactly on subject, but i've a site using the identical program as nicely and i get troubles with my feedback displaying. is there a setting i'm missing? it’s possible chances are you'll help me out? thanx.
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Really like the graphical design and navigation of the site, easy on the eyes and good content. other sites are just way too overflowing with adds
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Thank you very much for your kind words we appreciate the love!
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I was about to surrender, but tried again in a calmer mode and started checking everything in the paper path thru the printer.There's a small coiled spring that can come loose under the printer. This spring is connected to the plastic lever/sensor that tellls the printer there's paper in the drum/toner chamber.You should see it with the help of a lamp or flashlight, since almost everything under the printer is black plastic. You have to prop the printer on it's back to see it. there'a metal plate exactly below the paper feed rollers, you have take that plate out by removing the six screws that hold it in place. This is to check that the lever/sensor I pointed before is actually inside the hole that holds it in place. The spring, if its loose should be hanging by one of it ends using very small tweezers or needle nose pliers, you should be able to hook it back to the lever/sensor, it has a hooked end where the spring should hook to. The printer is working like a charm again!!! (IF THIS SPRING IS MISSING, IT SHOULD BE REPLACED WITH A SIMILAR ONE, IT IS ABOUT THE SIZE OF A BALLPOINT PEN SPRING, BUT WITH LOW TENSION, IT HAS THE TENSION OF A LEAF SPRING LIKE THE ONE IT THE BACK COVER OF THE PRINTER)
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