I had a bad paper jam, the paper was shredded in pieces. I had to use
a screwdriver to fish the shredded paper out of the roller. The printer
is working again but now there are two white spots size of of 3mm square
that would show on every printout. Is it possible to disassemble the
roller part to see if there are any paper stuck out there or did I possibly
scratch the lens?
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Re: Two white spots on printouts
Its not hard to replace TBU, remove 2 skrews and open connector and reinstall a new one. but be careful with the new on. also you cant buy only TBU fil, you have to the whole TBU and even if you find new film, replacing that film is a 10 times harder. so its not worth the risk of damage the film.
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Unplug it and look inside the shredding blades, especially around the spot usually near the center, where there is a pressure button. When paper hits it, it starts shredding. Chances are some pieces of paper have jammed just over it stopping paper from hitting it and switching it on. I have had to use long tweezers to work the jammed bits out... Once clear it will work again. Also using shredder oil every 50 sheets through will help it cut easier , and jam less frequently. Do not put too many sheets through together in a bunch. No staples...
You must first unplug it and look inside the shredding blades, especially around the spot usually near the center, where there is a pressure button. When paper hits it, it starts shredding. Chances are some pieces of paper have jammed just over it stopping paper from hitting it and switching it on. I have had to use long tweezers to work the jammed bits out... Once clear it will work again. Also using shredder oil every 50 sheets through will help it cut easier , and jam less frequently. Do not put too many sheets through together in a bunch. No staples...
I had this problem with an HP Laserjet printer. An old, dry piece of paper got mangled as it fed through. I finally used a bright LED flashlight and examined the entire paper path. Found a tiny shred of paper lodged deep inside. Removing that tiny shred with tweezers solved the problem.
Its probably jammed with shredded paper to the point where the paper is stopping you from removing the basket. You will just have to try to open it enough and "fish out" some of the paper so that the level goes down and the basket can be removed.
In extreme cases if you let the basket overfill then the "shredded" paper gets caught back up in the cutting blades and you can jam the machine and fry the pcb inside.
Unplug it and then open i t up. You are looking for a piece of shredded paper that is stuck or jammed. Can even be a accumulation of paper dust. The piece won't be that big but most of the time that is all that is wrong. The paper either jams the door sensor or blocks it and gives the error. It can also be a bad door sensor or switch. Not very common but can happen.
First, try switching to reverse, alot of times, stuck paper will come back out in reverse. Then unplug the unit, turn the head upside down and with a small flathead screwdriver, knife, or tweezers, dig out pieces of paper. It takes alot of effort but by digging small pieces out, a little at a time, you can get most of the paper free.
You either have a bad spot on the drum or a bad spot on the fuser rollers. Replace the cartridge first. If spot continues, take cartridge out and get inside with a flashlight. You'll probably find a piece of paper stuck to a roller.