I can get thick papers to feed reliably using the Rear Feed! Whats wrong?
There are two common issues when using the Rear Feed. One is that the printer refuses to pick up the paper at all. The other is that the printer picks up the paper and pulls it in, but then gives an error (e.g., Paper Skew). If you are having trouble with the former issue, make sure that (1) you have placed the sheet flush against the right edge of the Rear Feed guide, (2) you are inserting the paper straight (instead of at an angle), and (3) that you are pushing down firmly and consistently across the top edge of the paper as you insert it. The last point is particularly important. You must apply constant downward pressure, even after you feel the paper sheet encountering resistance inside the printer. It takes the 3800 about 1 or 2 seconds before it takes over and attempts to pull the sheet in. Once the 3800 picks up the sheet, you can let go — but not before then! If you are having trouble with the latter issue, it’s possible that the leading edge of the sheet isn’t straight. This