Designed for technical and office applications, Canon's 5-color dye/pigment Reactive Ink technology utilizes four highly colorfast dye inks for producing bold, expressive color, plus two channels of matte black ink for printing precise lines, smooth curves, and small text on technical and office documents. Help reduce total ink consumption by utilizing the Economy Print Mode for producing draft prints on select media. This feature regulates the use of all inks to produce quick check plots while minimizing the cost per print. The advanced features of the iPF815 allows for enhanced productivity in the most demanding environments. Its built-in 160GB hard drive makes handling multiple complex jobs simple, especially in shared printer environments. Relieve workload from your computer, store and retrieve print jobs with the touch of a button, and utilize a Remote User Interface and password-protected mailboxes to keep your workgroup productive. The iPF815's Economy Print Mode helps lower cost per print while its sub-ink-tank system enables on-the-fly ink replacement for continuous printing.