Question about Canon NP 6551 Black and White Copier

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Canon 6025 My copier NP6025 has been working fine, just resently all the copies are coming out very very dark. even when its on mannuel on the lightest setting. Can some one help. Thanks. Al

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  • Alberto Ramirez May 30, 2007

    Great job it was the exposure.
    Thanks for your help. problem solved



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Your problem is most likely caused by dirty optics. Place a sheet of paper on the glass & make 1 copy with the lid up. Look under the glass at the mirrors on the scanner & see if there is any dust on them. If so,turn the copier off & unplug it from the wall, remove the glass & wipe off the mirrors with a DRY cotton rag. There are 3 mirrors on the scanner assy. There is also three mirrors under the lens cover that should also be cleaned. After cleaning the optics, make a test copy.If your copies are still to dark, press the additional functions key & select exposure adjustment. You can lighten/darken all copies by changing this setting. If you have any problems or questions my email is Good Luck!!

Posted on May 29, 2007

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E 001 press the power switch to off and then back to on

Posted on Nov 17, 2007


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OR you can do it yourself.

your problems seems to be Dirty Mirrors.

Your copiear has 6 mirrors that need to be clean up. 5 of them are kinda easy access. the other needs to be clean thru something thiner than your fingers. (you can see the mirror but no way you can reach it).

Now dont worry (not yet) about that 6th mirror since THEORICALLY it doesnt get dirty.

So try first to clean up the other mirrors. and see what happens.

They are located below the platen glass (remove it) and be careful with the lenses (do not touch them). clean everything that seems to reflect light Or images.

If nothing changes you may want to try out with a new cartdrige. Your drum may be done.

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