That sounds very good - a printer that has an explicit pure B&W cartridge with black, gray, and light gray. This allows you to convert it to pure B&W operation without wild experiments with third-party cartridges, refill kits, tubes, syringes, open-heart surgery, and general anesthesia. It sounds like the right printer for me might finally be coming - something like the 7960 or 7660, but in a format for A3 prints. Until that becomes available, however, the 7660 with B&W cartridge could certainly be a good interim solution ...