Printed e-tickets will likely be have a novel bar code that could be scanned at park turnstiles. Printed eTickets will then be exchanged for normal Disneyland admission tickets or Park Hoppers of the appropriate range of days. Park reservations should be picked just before the ticket purchase. Here is the https://www.trip.com/?Allianceid=4013940&SID=25820743&trip_sub1=&trip_sub3=D679933