Xerox 7845 - white stripes and small water drops

[andrec123]

Howdy,

I got a Xerox 7845 here and is making some stranges markings on the top part of the page, looking like water drops, those marks are not on constant pattern, slightly changing position everytime I print something.
Besides that, I tried to print a few test pages and noticed the the white lines missing toner along the page.

I already tried to swap all the four drums for new ones, swapped the image belt, swapped the lasers

IMG20220324144332.jpgIMG20220324144319.jpg

Thanks for your help!

[jhalfhide]

Re: Xerox 7845 - white stripes and small water drops

That raindrop pattern is usually the 1st BTR rollers under the transfer belt

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[Murv]

Re: Xerox 7845 - white stripes and small water drops

What Jhalfhide said - 1st btr rollers are probably fouled. Clean those. On occasion you might have to replace the conductive bearings on the roller, but the vast majority of the time a good cleaning will do the trick

[shinchan]

Re: Xerox 7845 - white stripes and small water drops

Howdy,

I got a Xerox 7845 here and is making some stranges markings on the top part of the page, looking like water drops, those marks are not on constant pattern, slightly changing position everytime I print something.
Besides that, I tried to print a few test pages and noticed the the white lines missing toner along the page.

I already tried to swap all the four drums for new ones, swapped the image belt, swapped the lasers

[ATTACH=CONFIG]52692[/ATTACH][ATTACH=CONFIG]52691[/ATTACH]

Thanks for your help!

white lines = try checking the developing unit.
the developer must be even in the whole area when you rotate it using hand.