Question about Brother HL-2040 Laser Printer

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Paper looks dirty and grey after coming out of printer

Toner is not that old and no light or indication to change toner

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Seems like your printer is just too dirty, please go buy a duster to clean up your printer. Specially the drum.

Posted on May 23, 2009

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Samsung printer printing grey


The exit mirror of the laser-scanner unit is dirty. There is a gap above the toner cartrigdge, where the laser beam is comming from. Try to clean with dry soft lint-free cloth.

Apr 08, 2012 | Samsung SCX-4300 All-In-One Laser Printer

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I have a HP Laserjet 4250 that is printing dirty prints. I have replaced the toner and the fuser unit and cannot correct the problem. I have 2 of these printers and the toner and fuser unit works no...


Try printing from the manual feed tray(tray 1). Put a few sheets of paper in the tray. Print anything that is more than two or three sheets of paper. The paper path test is good, 10 sheets. As the paper gets about halfway into the printer, open the top door. Pull out the toner cartridge. Look down at the paper. If it's dirty it has to be the toner or the transfer roller. If it's clean it could be a dirty paper path or fuser.
Vacuum out the printer, if you have mounds of toner laying in the paper path, everything that comes out of the printer will be dirty.

Aug 02, 2010 | HP LaserJet 4250n Printer

2 Answers

Page looks "dirty" print is not clear


this is normally one of three things in my experience with these printers.

- either the printers drum unit has come to the end of its life and needs replacing

- the toner unit is coming to the end of its life or is a very cheap replacement cartridge not a brother original

- the fuser unit has become fouled up and is marking the page.

both of the first two parts the drum and toner are replaceable, i would recommend getting the original brother parts as they tend to work a lot better than most refilled cartridges i have seen for sale.

this should solve the problem, as its basically excess toner sticking to the drum due to age greying up the papers color.

if neither of these solve the problem you can get kits to clean the fuser unit, but i have never used one of these, as our company keeps a small stock of replacement parts for these printers in case we need them.

Dec 29, 2009 | Brother HL 1440 Laser Printer

1 Answer

Problem with ink coming out on paper


Replace the toner cartridge with a brand new one. There's no such thing as refilling toner cartridges. When it's empty, the drum unit is finished and it should be replaced, not refilled. Remember that the drum unit is sensitive to light, and will also be damaged if exposed to a great amount of light over a perid.

If a new cartridge does not solve your problem, remove the cartridge and check out the charge roller. It's located in the upper part of the "cartridge-room". It's a grey roller. lower the front cover the get easy access to it.

If it looks nice and clean, just leave it. If it is dirty and smutsy, you should remove it and try to clean it with hot water. If it is damaged in any way, it should be replaced.

Still problems ?

Check out the fixing unit. Remove the fixing unit and look at the the big rollers that put out the paper. If they look nice, put the fixing unit back in. If they are burned and dirty, replace the fixing unit.

Good Luck.

Jul 29, 2009 | Lexmark T632 Laser Printer

1 Answer

Dirty Pages


your fuser may need to be changed. The fuser fuses the toner to the paper. sometimes it will get a build up on it causing "dirty pages" as you described.

May 22, 2009 | HP LaserJet 4300tn Printer

2 Answers

Grey streaking on printed pages


Laser printers are charged using a drum which produces an electrostatic image. The drum could be unable to hold all of the 600v charge or be be scratched if the streaks are always in the same position the the drum is not holding the charge for the toner to attach to and therefore the drum is faulty and beeds to be replaced

May 20, 2009 | Brother HL-2040 Laser Printer

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