This industry comprises establishments primarily engaged in manufacturing printing and inkjet inks and inkjet cartridges. Cross-References. Establishments primarily engaged in-- ? Recycling inkjet cartridges--are classified in U.S. Industry 811212, Computer and Office Machine Repair and Maintenance; ? Manufacturing writing, drawing, and stamping ink--are classified in U.S. Industry 325998, All Other Miscellaneous Chemical Product and Preparation Manufacturing; and ? Manufacturing toners and toner cartridges for photocopiers, fax machines, computer printers, and similar office machines--are classified in U.S. Industry 325992, Photographic Film, Paper, Plate, and Chemical Manufacturing.