Printer makes not just the printed words dark but there's a grey haze on the page. So it looks like we're printing on light grey paper, but we're not. It's white! And when I open the machine, there's black toner everywhere. Help help!
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Re: Printer leaves a grey haze on the page.
If your fuser is not failing then someone probably didn't install the toner properly. Regardless, it is incredibly hard to clean toner out from all the guts and the gray won't go away as long as it is there. I would take it outside, wear a smock, and blow it out with an air compressor or half a dozen cans of compressed air. Wipe down and clean every part you can.
Replace the toner cartridge. Then run a couple dozen copies of something to pick up the remaining toner from the internal mechanisms. See if their is any more toner. If there isn't...then somebody messed up and you just need to work the last of the toner out of the innards.If there is more toner after you clean it out and replace the toner cartridge, start thinking about replacing the fuser.
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Sounds like a poor quality toner was put in your cartridge. If you are using remanufactured cartridges see your remanufacturer for a replacement. If you are using OEM cartridges contact Brother directly and they can sort out the issues and supply replacement cartridges.
Ensure that cartridge are not refilled, then only you do the following process:>Got to printer properties>printing preferences>color>select print in grey scale>apply>OK.. Then check..Reason why its act like this: In printer properties if its selected as print in color, printer mixes colors to create black(which is visible look like dark grey).Select in properties as above said before clicking OK for the print command, then only printer uses mono cartridge..
it not only depends on the printer, but on the software you are using to do your text.
if you are using office, you must choose orientation manually. If that doesn't work, and for example you are using word art, just leave the page as it is by default and rotate the text. Again, it all depends on the software you are using
remove the toner cart and lower the top cover about 1/2 way. Look inside and you will see 2 grey rollers hanging from the top on 2 arms. Move the right side arm to the right and grey rollers will fall out (they are as wide as a sheet of paper)
use a light scrubbing with a damp cloth to remove the grey, the rubber should be a tan colour. Dry them off well, insert the left side first (cover in the 1/2 closed position makes moving that right arm easy. install the toner cart again and print a page. It should be nice and dark now, just make sure the rollers are dry when you reinstall them.
1.Charge – Print Quality (PQ) -- The charge roller evenly distributes a negative charge on the photoconductor (PC) drum.This evenly distributed charge acts as the film that is discharged (exposed) by the laser to create the latent image. a.Print Quality effected:Faint, Entire Blackbackground, GreyFog/Haze b.Parts Involved: i.Drum -- A drum cartridge is coated with a photoconductive material that allows electricity to pass when exposed to light.As an example of why this can be the failure, if you leave a drum out in light long enough, you will get dark backgrounds or just black pages.However, drums do wear out over time too; specifically the photo material the drum is coated with.As this degrades, more of the positive electricity on the inside of the drum gets through and grabs toner, as if the laser wrote to every square inch of it. A damaged or defective PC drum can cause black streaks/lines, voids, speckles and various other print quality problems. ii.Charge Roller –Also known as the BCR or Bias Charge Roll. The charge roller pulls double duty.It energizes the outside of the drum with negative energy and as a result it cleans any previous latent images.If the charge roller were failing to energize either due to the HVPS or the charge roller itself, it wouldn’t clean any previous unused toner deposits from the last revolution would start to accumulate and appear on paper more and more causing haze.A missing charge roller causes completely black pages.
iii.HVPS – High Voltage Power Supply -- Responsible for charging components such as the inside of the drum, the charge roller, and transfer roller.If the HVPS does not give enough to the charge roller it can fail in erasing the drum, causing entirely Black pages to be printed.
Low toner. Consider how often you print. If you print more than twice a day, toner will tend to run low after half a year, so I would buy a replacement cartridge and see if this solves your issue. They aren't terribly expensive, so it is worth a shot.
Inspect imaging drums for any signs of leakage or excess toner that could be falling onto the print as it travels though the printer. Any leaking imaging drums should be replaced.
Verify environmental conditions. See article Dealing with humidity, humidifiers. If the environmental conditions are not within the specified range, the printer should be moved before trying to troubleshoot the cause to the background toner.
Determine if any of the imaging drums were exposed to light for an extended period of time (more than 10 minutes). If so, then Replace the imaging drum. (Xerox is not responsible for any imaging drums that have been damaged by over exposure to light.)
Additional Recommendations: Background toner may increase, if printing occurs at temperatures towards the higher end of the specified operating temperature range. For this reason, it is recommended that the printer be moved to another area if at all possible.
In addition, very smooth media types such as glossy; allow toner to more easily scatter about the page prior to becoming fused. Try using a less smooth media if at all possible.