Question about Canon NP 6050 Copier

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The copy has white spots i change the corona wire alrady

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  • 1905pgc Nov 04, 2008

    is all the sheet with white spots i suspect the problem is the drum

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Is it large white area spots or lines?

Posted on Nov 03, 2008

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I have a Canon CLC 4000, I have put new drums, and developers the fixing unit its OK. the glass(clean inside) too, but when i print o copy the colors are ok but a little Clear in some parts white spots...


If you haven't cleaned the optics and the coronas, do it. Always clean the machine, first. It'll save you money in the end. Not just the original glass. There are 3 optical mirrors in the optics cavity(underneath the original glass). One above the drum, and there are thre high voltage corona wires that get dirty.

White usually means that light is being blocked, and black usually means dirty coronas.

Don't know your technical level. if you need instructions

Let me know

Jan 16, 2011 | Canon CLC 4000 Copier

2 Answers

Canon ir5000 copies have horizonal bands of light copy quality. How do I get even, good quality down the entire page?


The machine probably needs a service paying attention to the development and the cleaning areas. Also, clean or replace the corona wires and check that there is no flat spots on the fuser roller.

Jun 18, 2010 | Canon Printers & Copiers

1 Answer

My ir 400 gives a white spot


something could be blocking the primary chargeing corona wires/roller. i see it a lot on the ir 5000 when the primary corona assmbly cleaning pads get stuck half way through the cleaning cycle.

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1 Answer

Dirty copies


clean corona wires--heater roller and if did not success change the drum.

Nov 30, 2009 | Canon imageRUNNER 3035 Black and White...

2 Answers

Blank copy


please check corona wire may be it was broken re-wear it then print ok

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1 Answer

PC 940 Canon Copier help with cleaning


Hello sir; Discharge corona unit dirty it cause this problem, got to be discharge corona wire covered by tone, clean outby rubbing alcohol,it will take care your problem.

Feb 17, 2009 | Canon PC-940 Black and White Copier

1 Answer

Canon NP 6218 B&W Copier


try also to change or to service the corona units both the upper corona in the drum unit and the the transfer corona assembly unit down the drum. ok try your best.

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1 Answer

Cleaning corona wire on Toshiba e-studio 810


Clean with an eraser by rubbing back and forth ( careful it can snap)
use a tissue w/ water

Jul 16, 2008 | Toshiba E-STUDIO 650 Copier

1 Answer

Black Spots all over my copies


There are lots of things that can cause this. Inspect the fuser assembly & verify that there isn't any teflon missing from the upper roller & that the lower roller is clean. The spots can also be caused by a build up of waste toner in the cleaning assembly, causing excess toner to be dropped on the copies as they pass under it. The cleaning assembly would need to be removed & cleaned to correct this. The spots are not always in the same place - but are they the same pattern? A worn drum assembly can cause spots that are usually a repeating pattern but located in different parts of multiple copies. Dirty corona wires can also cause random spots & rewiring the coronas would solve that.

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