There was a large scale project that involved over 80,000 bus passes for senior citizens. This project involved coming up with a means to print and distribute these secure bus passes to help senior citizens take advantage of the local bus system. They use laser and ink printers to help local schools and businesses print their customized badges which can help save on cost. Purchasing an HP laser cartridge is usually done through a third party that can actually get the cost lower thus lowering the overall printing cost to the school or business.