You must have the necessary charts for your flight in the airplane and they must be current. Printing your own, so far as I know, does not satisfy this requirement.
If I ask you to take one page that you have printed and demonstrate its valid dates, can you do it.
There are now some electronic alternatives but you would have to be careful to be sure that they are certified as equivalent to paper charts for your flight.
If you were to be ramp checked or be involved in an incident, you could be violated.
If you are a student pilot, your flight school should be able to direct you to the applicable regulations.
If you are a student pilot, your flight school may have something to say about whether they would allow you to use electronic alternatives.
Be especially careful to have everything in order on your practical test.