Many small office or home networks, as well as badly organized larger environments, allow each client a direct access to available network printers. This is generally a bad idea. It often blocks one client's access to the printer when another client's job is printing. It might freeze the first client's application while it is waiting to get rid of the job. Also, there are frequent complaints about various jobs being printed with their pages mixed with each other. A better concept is the use of a print server: it routes all jobs through one central system, which responds immediately, takes jobs from multiple concurrent clients, and transfers them to the printer(s) in the correct order.