Question about Brother MFC 7840W Printer
Most jams in this area of a printer are caused by two things: The Pickup Roller and the Separation Pad in the Tray. You can clean the roller with a coffee filter and water or use a non-amonia based cleaner. I suggested the coffee filter for several reasons:
Cheap, Lint Free & Durable. Now as to the Separation Pad: Rough up the pad with a sharp knife [lightly please!] or rub with steel wool. this should be done if the pad feels slick when you rub you finger over it. Also, check the registration sensor flag which is usually just under the toner cartridge or just before it. If that flag is sticking, or slow to return to its correct position, the signal detects its late and stops all paper movement thinking it's jammed.
Posted on Oct 22, 2013
Testimonial: "thanks for you respond, but after trying several different steps I found that if I print using just 1 page in the paper door or the manual feed it prints ok. Now I questions is what sensor is failing."
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Posted on Jan 02, 2017
SOURCE: Brother DCP-7020 Drum problems
Open the front of the printer by pulling on both tabs at the finger grips on both sides of the front panel. The front panel will flip down. The drum and toner cartridge comes out as a single unit. It is black plastic within gray plastic and has a handle like grip in the middle. Grasp this grip and pull the unit up and out. It feels kinda funny the first time you do it and you may feel like it will break, but it won't. Pull it up and out in a kinda circular arc. Do not touch the drum. If you ever need to replace the toner cartridge, press on the blue tap and separate the drum from the toner cartridge. You will have to replace the drum after every five toner cartridge replacements so practice doing it now. Note the tabs and slots on the sides before separating the drum and cartridge. Align the cartridge into the drum carriage and slide it in until it clicks. To replace the cartridge assembly into the printer, angle the cartridge at about 45 degrees and rotate in while pushing. It should click into place. If the front door then closes properly, you should have it in properly. Practice a few times and you should be an expert. For paper jams, there are many places to check and they may not all give warnings. First pull out the paper tray and check for and remove misfeeds. Remove the drum cartridge assembly and described here and check for and remove any paper. Open the back cover and check for and remove any paper. Open the automatic feed and check there as well as lifting the cover where the scanning surface is. Look in the rollers for the automatic feed for paper pieces. The last place almost never gives you a warning. Reach into the slot where the paper exits after being printed and grasp the whole top cover. Lift upward and it will open about 4 inches. This is a good place where small pieces of paper or even whole sheets may get stuck. Clean out any dust while you are there.
Posted on Oct 04, 2007
Go to that link and download user manual or read their support pages
Posted on Mar 20, 2009
SOURCE: Brother HL-2030 paper jam
1. Face the back of the printer. You may have to disconnect the cables. Just note their position for later reconnection. Open the rear cover.
2. Lower the forkish cover that is further in the back of the printer. It has a sticker on its left side.
3. There is a "finger" in the middle of the forkish cover that may not be in position. Note that there is on the mid-right side of it a tab, that has to be positioned to go down into the hole.
4. Close both covers and reconnect the wires if necessary.
5. It should now be working BS"D!!!
Posted on Nov 02, 2009
The drum is the photosensitive roller that the image is charged onto so I'm afraid cleaning the corona wire won't help. If the drum is removeable try reseating it, otherwise it looks like you may need to buy a new drum kit for it.
Posted on Apr 28, 2010
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