My new HP 1200d (replacement for a 990cse that worked great for 3 years) has a new way to get you to buy more cartridges. The cartridges will not install if they are older than x months beyond the expiration date. The 1200 uses 3 color and 1 B&W cartridge. I bought replacement cartridges for all so that there could "never" be an emergency. So, right in the middle of a client presentation, the yellow cartridge needed to be replaced. I smugly replaced the cartridge -- but it still wouldn't print. Turns out, after a little reading of web blasts, that the 1200d printer won't let you install a cartridge that it decides is "too old" even if, as in my case, other older cartridges are in the same printer, working just fine! [I've recently heard that Epson and Canon have followed suit] . I have not found this documented so it must be written smaller than mouse print. Just infuriating...