CCJumpBy simulates a parabolic jump movement.
id jump_Up = [CCJumpBy actionWithDuration:1.0f position:ccp(0, 200) height:50 jumps:1];
Running the above jump_Up action will move the sprite's position by '0' distance along x axis and '200'units along y axis and will move the sprite along a parabolic path.
If you wish to move the sprite right or left while jumping. Try the following..
CGPoint newPosition = ccp(max(sprite.position.x + screenSize.width * 0.2f,screenSize.width), sprite.position.y);
id jumpAct = [CCJumpBy actionWithDuration:1.0f position:newPosition height:50 jumps:1];
[sprite runAction:jumpAct];