This is a common problem with laser printers. It is the result of the heat, 
the rollers, the moisture in the paper, and the humidity. I have had this 
problem with HPs, Epson, Konica ...you name it. How bad the curling is 
depends more on how high the humidity is then the particular brand printer, 
or paper. I have had the best luck with the highest quality HP paper, and 
the worst luck with any Hammermill paper.

I live within 1000 feet of the Pacific, and my humidity is rarely under 35 
per cent, and usually closer to 45 per cent, or above. Curling is so bad 
that I routinely stand next to the printer, while it is printing, and 
remove documents as they come out to avoid jams.

If you have the space to do so, set up your printer to shoot the paper 
straight out the back, rather then routing them up through the rollers, and 
out the paper tray, which just adds to the curling effect.

Rode
The NOSPIN Group
http://www.freepctech.com/rode/

> >I bought a Brother HL-5140 monochrome laser printer. I'm very happy with
>it with one exception. When I print a sequence of pages, the pages end up
>being curled as if the paper had been tightly rolled up and taken a "set".
>I've tried Office Depot 24# Premium Laser paper and lighter copy paper. Is
>this typical of laser printers or is there something wrong? Thanks for the
>input, Bob

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