Everything about the Canon imageClass D1620 makes it a great multifunction monochrome laser printer for high-volume offices, except its high running costs. The Canon imageClass D1620 ($499) is a multifunction monochrome laser printer designed for low- to medium-volume printing and copying in small- and midsize offices. Like the Editors’ Choice Brother MFC-L6700DW, it’s fast, it prints well, and it’s built to accommodate high-volume printing and copying. However, the D1620′s high running costs, especially for this price range, may cause the budget-conscious buyer pause. Otherwise, the D1620 meets all other print and copy requirements for busy offices. At 17.8 by 19.5 by 18.3 inches (HWD) and weighing 41.9 pounds, the D1620 is no desktop machine. Like several competing models, including the Canon imageClass MF424dW and the Brother MFC-L6700DW (both Editors’ Choice models) the D1620 is built to churn out thousands of prints and copies each month. Also close in size and capacities are Lexmark’s MB2442adwe and Epson’s WorkForce Pro WF-M5799, a high-volume monochrome inkjet AIO. Atop the D1620 is a 50-sheet automatic document feeder (ADF) that...