Tip & How-To about Laser 3115cn All-In-One Printer

Smudges Smears and dirty tracks on your paper are from your roller bar's build up of toner. You can do this yourself if you're willing to put some effort into it. The solution to this is written below. To clean up a laser printer that's leaving lines/smudges/smears on paper do the following and should you get stuck post the problem you're having to us on fixya.com for some further assistance. Digging into the guts of your machine is how you clean it up if you know how or are handy this way with things mechanical. And, may be the only way if you've printed a lot of sheets and the inside of your printer is filled with toner dust. The dust comes off the paper itself and just gets inside and starts to blow around until you see what you're seeing on your printed document. Two things to be aware of though, you will want to do this outside or in a garage on a plastic sheet and wear gloves. The toner is static sensitive by design and it gets everywhere. You'll want a small vacuum with a clean bag you'll trash later, canned air, a 3/4 inch natural bristle paint brush (less than a buck type) and some lint free rags. All these things you'll have to trash when you are done as you'll get them saturated with toner. I use an old Orek cannister vacuum outside and no bag to get better suction and the hose can be swapped easily on this vacuum with the exhaust to blow out (blow the toner out first before you use it on your printer. The vacuum blow side is good and economical instead of going through cans of air all the time. Remove your toner cartridge carefully, close the open port and place it in a bag large enough and place it well aside. Disassemble the unit in a laid out order that will help you to reassemble it later. As you take each component out blow it off in an area away from disassembly area and downwind from you. Look for areas you can clean out further with your disposable brushes and then blow that area out too. When you get to the rollers and have done the above sequence put a clean brush in alcohol and wipe down the rollers until they're clean. Once the rollers are done, you'll need another clean brush and soak the rollers down with clean water. The alcohol shrinks the rubber compound and the water will rehydrate them. This is pretty important as a roller that has shrunk from dry humid climate or cleaning the rollers will start to slip or worse one side will and the other won't and you'll have a paper jam. Go through your entire unit this way and on reassembly you may want to look the gears over and see if the white lithium is pretty dark, if so clean those off by wiping and add new white lithium grease jto them. Be pretty careful putting the toner into place and make certain it is latched correctly. Once the unit is clean and reassembled just plug the unit it while your still in your clean up area and power on and then off. Do this a couple of times so the gearing seats itself. When you energize a printer fully, it goes through a power on self check, that will fail if you don't power on/off quickly a few times for the gears to seat themselves. Then let the system energize completely. You may get an error message, don't be too surprised, just look it up and see what needs to be done about it. Once it energizes and powers up with no error messages other than you're not connected to a computer start feeding sheets out the printer until they come out clean. You should be good to go at this point.. With your computer off, connect to your computer and power up. If you have any trouble post your problem here at fixya.com or you can reach me at: fixya.com/users/worldvet Good Luck and Happy Cleaning, Worldvet

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toner smudges


no exact idea which exact part - However had a similar problem in my laser printer. I used a can of compressed air with the printer outside the building and sprayed the air on everything that the paper would come into contact with inside the printer with the toner cartridge removed out of the printer. And problem was resolved. I suspected the paper rollers . you can get a can of compressed air from electronic spare part type stores like Jaycar

Jun 20, 2017 | Samsung ML-2850 Series

1 Answer

Bizhub C350 Black smudges on prints


Sounds like you may have a bad fusing roller. Run some blank sheets. If the smudges start to fade, that's your trouble. When the fusing roller is bad it doesn't clean as well, so when you run bold text or anything that has higher than normal toner coverage, there will be more build up on the fusing roller that then transfers to the paper.

Sep 30, 2009 | Konica Minolta bizhub 350 All-In-One Laser...

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Lines on copies


There is no model number or brand mentioned, but it may need a new drum kit. Also, sometimes the fuzer module is dirty.

Nov 07, 2007 | Office Equipment & Supplies

1 Answer

"Clean drum" doesn't get rid of smears.


Need to change cartridge, the residue is not being cleaned off by the Drum Blade.

Oct 29, 2007 | Samsung SCX-4720FN All-In-One Laser...

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