HP Business Inkjet 1100d ... cost-effective color and black and white printing. Printing speeds up to 23 pages per minute black, 20 pages per minute color, with excellent print-quality results from up to 4800 optimized dpi. Modular HP ink cartridges and printheads ensure cost-effective and high-quality printing, while minimal user intervention and infrequent maintenance keep costs low. Each of the four individual ink cartridges holds a single color. When one of the black or color ink cartridges runs out, only that cartridge needs to be replaced. Network-capable for small workgroups, use it with PCs, Macs, or major network operating systems to get results - two-sided printing and additional input options available. Save paper and resources using automatic two-sided printing unit, which comes standard in the HP Business Inkjet 1100 series printer. The two-sided printing feature helps you create the look that you want for your documents while saving paper resources. The robust monthly duty cycle of 6,250 pages accommodates the printing needs of high-productivity individuals and small work teams.