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Re: White line and very, very dirty copies
The nealy black copies sounds like the drum is going, try adjusting the exposure to light, if it comes out with the whole page the same way but just lighter than change drum. White line sounds like there is something on the coronas.
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Thecoverplateisabove the glasswhite surfaceof the scanner.If thisisthe samedirtystainswill come outon copies. Theglassmust be clean. By feedingthe original documentsthrough the ADF,the scanner lampis no longerthe pathto scan,the ADFis responsible forpassing theoriginaldocumentover thescanner, whileit remainsstillplacedon the sideunder athinglassistoalargeglass side.Thisalsomust be clean,otherwise youwill be black linesoneach pointor spot onthe glass. Good luck...
Was the toner remanufactured/ compatible? Sounds to me like the doctor blade in the cartridge is 'gummed' up and not allowing the toner to flow evenly across the Developer roller......try another cartridge
How is the copy quality? Are copies light? If so then the toner hopper is not adding toner to the developer assembly in which case you must call a tech. If the copies are fine then the toner sensor is dirty or faulty and must be replaced.
If it makes verticle lines only when using the document feeder it is most likely a dirty glass strip over the scanner light bar. If it makes verticle lines in all modes (printing, flat bed scanning/copying, receiving faxes) it could be the fuser or a dirty glass over the laser where ever the laser images to a drum roller (usually a larger green roller). It is possible that this green drum roller is inside the toner - if so - replacing the toner cartridge could fix it. Maybe you could try an old used toner to see of the problem changes - if so - it is very likely that a new toner would fix your print quality issue.
That black dust that fell out is the toner. When you shake a toner cartridge that shouldn't happen. It looks like you have a faulty toner cartidge and that need to be replaced!
Now to make your printer prints cleanly and clearly after you replace the cartridge, you'll need to get someone to service the printer(the faulty toner cartridge more than likely spilled toner on your internal printer parts, cause the smudges). Sevicing would mainly entail, taking down the printer and removing any spilt toner!
If you feel you are up to this, be cautious, because toner can be hazardous to your health if you accidentally breathe it in!
hope this was helpful!