Clp-500. i'm getting four toner streaks across the paper appearing 6.75" down from the top of the paper. the streaks go across the paper and all four colors are seen. the order of the color streaks: black, blue, magenta, yellow. the width of the streaks is small, about 1/16". it only happens once per page, but it's appearing on every page. any ideas how to eliminate them?
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Are the streaks horisontal or vertical on the page? What printer? Laser or InkJet? If laser, and streaks are vertical, you might have some dirt stuck in teh tomer cartradge or somewhere along the paper path If laser, and streraks are horisontal, your toner cartridge might be dirty or leaking toner
Pull down the manual feed tray door. Load a few sheets of paper in tray 1. Print something. As the paper feeds into the printer observe it. When the paper gets halfway in, open the top cover. Lift out the toner and look down at the paper. Does it have a black streak? If yes...change the toner. If no...change the fuser.
Put paper in the manual feed tray. That's the pull down door in the front. Print something. As the page gets fed 3/4 of the way into the printer, open the top cover. Pull out the toner. Look down at the paper. If you see the prominent streak, you probably have a bad toner cartridge. If the streak is not there, check the fuser. One of the rollers is bad.
While you have the toner in your hand, you should see a flap that is the entire length of the cartridge. Put you thumb on the flap and pull it down. You will now be looking at the drum. If you see the prominent streak, that's your problem. See if you can clean it with a soft lint free dry cloth. If the streak comes back, the rubber cleaning blade is probably bad. Replace the toner cartridge.
I will try to explain what is happening here. Basically, the PCU's are what puts the toner to the paper. As the parts spin, if there is clumped up toner in there, you will get the "light" streaks on your print out and the streaks will run the entire length of the page for that 1 color (or black). If this is your problem, then here is what I do.
This is messy, get a plastic bag - preferable something you can see through.
Get a feel for where the opening slider is on the top of the PCU and slide it open and hold it open in the bag.
Turn the PCU upside down and shake out all of the loose toner, you will have to turn the unit "to and fro" while shaking and banging it lightly.
Sometimes this will free up the clump of toner that is built up in between the sides of the toner trap and the roller. There's 1 roller that is constantly "dipped" in toner and the other roller that pulls the toner that is needed off of the "dipped" roller to apply to the paper. The one that is "dipped" is having the toner rubbed off by a clump of toner prior to getting to the other roller therefore only transferring a reduced amount of toner where the buildup is.
I have also on the Black PCU have removed the top 2 screws, taken off the green end cap (watch for the 2 plastic plugs that will fall), flicked the spring clips off of both ends and removed the 1 gear to pull out the roller assembly inside the PCU and used a high pressure blower (or canned air) to clean out any clumps. I don't recommend this to anyone that is not mechanically inclined. You can try to blow out the unit through the small slider opening on the top, but you may not get to the part where the streak is.
I've refilled the toner cartridges a few times now and never had a problem with vertical streaks until recently. I refilled both the cyan and magenta and when I ran the test page I had dark vertical streaks on both sides. I fiddled around cleaning things, running cleaning paper through, changing reset resistors but to no avail so eventually decided to buy a replacement refurbished cyan cartridge since the streaks looked mainly blue and bingo... well almost now I just have very light magenta streaks. The issue is obvious when I compared the old and new cartridge, the replacement toner is a much duller cyan and is of the wrong consistency since once it's been in the printer everything gets covered in it which is why I think it causes the banding to occur. I'm just trying to work out now whether to try refilling the magenta again (v. messy) or just go for another refurbished cartridge (£34).
Check your Toner Carts. Is the line a certain color? Black perhaps?
Lift the door of the toner cart. If you see a streak on your toner drum, you will see a streak on your paperwork.
Look at your fuser as well. Is there a problem with the big orange roller? BEWARE! Don't touch the fuser roller its EXTREMELY HOT! Let the printer cool down before inspecting.
The Black Lines are not due to to toner problem.
The Black lines ate same at the Page Location . If so the Problem may be with Drum Or Charging Unit Or fuser assembly. If the same problem continues Please take out and see the drum do not toch it . (Please Power off the Printer and disconnect all the cables. )
There has probably been spilled some toner inside the printer. You might be able to have it cleaned. It also might just wear off, but that will take some time. If the printer has toner cartridge with a drum inside, changing it might help.
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