Paper jam in tray 2

the most common problem for a paper jam in tray 2 is that either the pick up rollers and separation pads are worn or that there is something stuck to the rollers that transfer the paper up through to trat 1.(most commonly from if people have been printing on stickers/labels) just eyeball it to see if anything looks to be stook and try wiping it off. DO NOT SCRATCH IT OFF as this will only make things worse!!!

This is a common issue if the printer has had a variety of differant types of paper used.
Many times the rollers collect material and when they grab the paper they tend to slightly turn it or redirect it in which this causes tears or a bunching of the paper.
You may have to open the printer up and completely inspect it as many times with the openings for eyesight available you cannont see much.
Usually the problem is a gummed up roller or a small piece of bunched paper thats hard to find.
Give it a THOROUGH cleaning.

The paper roller pick up does the job fine.  The right side paper separator would not allow the paper to enter for printing.  What is wrong please.

just opend the upper cover of the printer and chcked the roller inside any material are hang up

Since the problem is continuous, you need to thoroughly inspect ALL rollers for dust, paper, and being worn out. One example of solving a recurring printer paper jam problem is http://annoyances-resolved.blogspot.com/2009/10/recurring-laser-printer-paper-jam.html
There is another post on the same blog dealing with finding ALL the rollers and really thoroughly cleaning them. That could solve your problem 100%.