Non-recognition of the paper in the printer HP 2015

Hi mosayeb mohebi

I would be happy to help you with your Laserjet 2015. Based on your description, it sounds to me like you are experiencing a paper feed issue. Please use the following link to locate a document specific to the issue at hand:
HP LaserJet P2015 Printer series

If the issue persists, I suggest calling us. What you can do, is use the following link to create yourself a case number, then call and it may help speed up the call process:

Step 1. Open link: h22207 www2 hp com
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click on: HP contact options - click on Get phone number

Case number and phone number appear.

I hope this helps.
I work on behalf of HP.