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pp-densitomeater black field missing


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Sounds like slippage in the rollers on the large print exit. The hard the roller gets covered in stabiliser and gets too smooth. You'll see this because either the top belts are not turning all the time, or are juddery.

Use water and a light abrasive pad like Scotch Brite to clean this after removing top, sides, stainess steel piece and spacer bar that holds this in place.

It may be that the belts need replacing.

You can get through MBL's etc, by just assisting the rollers with your hand, to ensure they keep turning after the paper hits the densitometer.

We had the same issue very recently and fixed this way, but new belts will be needed soon. :)

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