Interview process is normal, it can either be done by going to the main office & filling out an application (which you can either hand in person or email, no method is better than the other). Come business casual & well managed facial hair or no facial hair. I highly recommend you mention & include any past office/copy experience (ex. copying, scanning, courier & even court/ law affiliations).
Hiring: After the interview process, it can takes as long as 2-3 weeks from the interview date to as early as a next day call.
Another tip is to ask to get a tour of the main shop to see the equipment & about the other work sites in the general center city area. Unless you are really struggling I do not recommend the shop unless you are very serious about large & time-sensitive production copy/scan/print work, you'll want to work for the Management Services Division.