Question about Sharp AL 800 Copier

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Sharp AL-800 light copies

I have a sharp AL-800 and the copies are light. I cleaned the optics and replaced the toner DV unit. Much better, but still very light on auto exp. Machine located in dusty environment

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  • jdagata May 11, 2009

    no coronas to be found- this is a digital, has a transfer roller that I have cleaned, the main ch. must be in the drum unit. I cleaned the scanner slitglass and the **** opening above the drum. I also adj. the exposure by holding the auto exp. key until it blinked, then adj. to the darkest set. It is much better, and a skyshot is good and black. It still could be better though-

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  • 469 Answers

Check the machine for a **** or dust glass above the drum.
Check and clean coronas, the wires and shells may be dirty reducing charge.
Run a few white copies, to check of the toner / carrier ratio is low.

Hope this is of some help.
Ed

Posted on May 11, 2009

  • Ed
    Ed May 11, 2009

    I would look into the charge corona, and if it is constantly adding toner, As I mentioned on my last post, it could be a lack of toner, test the machine door open and watch the machine, if it is depleted it will add toner on every copy.

    Running white copies and having the quality improve will detect this.



    Ed

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1 Answer

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As long as it is dirty inside the nachine, you will continue to have problems with copy quality' The light copies are from dust in your optics.

Basically, the machine needs aGOOD Cleaning, inside and out..Yes, it will cost you a service call, but that should clear up your issues. Be careful, and ask the tech/company what a good cleaning consists. Be srecific with describing your problems, like you did here.

Good Luck

P.S. if you have in house tech, let me know. I can tell them how to get into everything on the machine.

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No, you need to clean the optics( beneath the copy glass and lenses of laser unit ).

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