Dell 2015cn Multicolor Laser Printer Paper feed and printing Copy Problem

HI
 I have Dell 2135cn Multicolor laser Printer.

I have a problem that if i give print a file of 1 page means , it automatically prints that same page 2 or more times.

Also Paper doesn't feed after 2 prints. Every time i need to open paper feed door and close. Then only it recognized and prints not even more than 2 papers. Same problem.

Please help me. Thanks In Advance