The old school way is to move the paper with a single morph along say the Z. The motion will follow the curve of a chain of bones that form the path of your paper. Maybe this is how you did it before. But a lot of people dont know about this fun trick. I read this as a tutorial in Video Toaster user back in lw3 days that was specifically for the newspaper-thru-rollers type of thing you are doing.
An example where I used the bone-morph gag was to control the main volume of 'oats' that had to move along a path. This allowed much more control than using PFX to shape, scale and move a column of points.
http://www.box.net/shared/static/r8ymb6o4sq.mov
wire
http://www.box.net/shared/static/0ut4b1vq3d.mov