Print is faded out on right side of page Toner cartridge replaced
Hi. My printer is printing a solid page of black...I mean totally black, no spots, no nothing, just black. I took the toner cartridge out and put it back in again. Is this a problem with the toner cartridge or the laser assembly? I wiped the inside to get dust out, not that there was all that much to begin with.
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Re: Page not printing properly
It would definitely be a High Voltage problem. The printer uses HV to create the image on the drum and transfer it to the paper. The laser erases the charge on the drum and wherever there is no charge the toner sticks and forms the image. The charged area repels the toner. Theory is the HV charge produced by the Controller board is diminishing and as it diminishes, the pages get blacker. If you let it recover the HV gets back to normal. You would need to replace the controller board. It occupies most of the bottom part of the printer. You can see it if you lift the small panel in the back of the printer.
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sounds like your black toner cartridge is getting low or not filled evenly. To fix this until it get a bit lower on toner just take the cartridge out and holding it up right give it a few shakes side to side. The will spread the toner power out inside and you should be printing normally again.
This can also happen if you moved or bumped the printer. Usually you only see this when the toner is low or after you print a lot of pages. Most text is in the mid of the paper so thats where the toner get s used the most.
The corona wire is not charging the drum properly. Try pulling the toner cartridge out and then re-seating it. If this doesn't work, try a new toner cartridge as the corona wire is usually included in the cartridge.
If you are using a refill toner, there's an outside chance that the supplier put toner with the wrong electric charge in the cartridge. Again, changing the cartridge should fix this(assuming the replacement is from another batch).
Everyone will tell you that it's the Imaging Unit - happy to say that's not true. If it was the imaging unit the colors would not come out right either. I bet if you print a test page that all the colors come out fine across the page. It's only the black. Also - if you replace the black toner cartridge, or reinstall your printer and drivers like some people will tell you - still no results. The problem is in the black toner cartridge PATH inside the printer. Something has jammed it up a bit. Try taking out the black cartridge and blowing firmly into the small hole at the bottom of the spout that looks to have a sponge inside. Use a straw and make sure your air blown is dry. Then lightly tap the cartridge a few times. Then use the straw and once again blow very firmly inside the receiving path (inside the printer) for the spout on the cartridge. Make sure you are blowing into the spout path at the bottom - not the gear drive path in the middle - as that will not do any good. Replace the cartridge, warm up and print another black and white page. You should see that the faded out section is gone or diminished in size. If it is not gone, simply repeat the above steps until it is gone. You will see that the faded out strip gets smaller and smaller each time until it's gone. I had to repeat five times, but eventually got it corrected. Now prints like brand new so don't get discouraged. Loki
Have you tried cleaning the leans at the bottom of the printer? Open the cover, pull out the drum. Under it is a long, narrow piece of glass. If it gets dusty or toner accumulates on it, it will cause streaks in the printing. If this is dirty, take a clean, soft cloth and very gently wipe it off.
The print heads don't appreciate being out of ink so the Brother printer has sensors to prevent that but the tape defeated that prevention. Maybe more cleanings or maybe a cartridge with printhead cleaning solution will help. Otherwise, I fear a new printer.