You are guilty.
Yes. You are. Don’t blame your printer.
You are in the midst of printing your work and the cartridge in your printer starts troubling you. You haven’t got any other cartridge as a backup. You have no option but to stop printing, and wait for another cartridge to arrive. You suffer financial or academic losses because of your inability to print. But, after all, it was your responsibility to get a cartridge or two ready to replace the one already inside the printer. A printer can’t replace its own cartridge. Can it?
You say you just cannot afford to buy a few cartridges together to keep them as backup. OEM cartridges come costly and purchasing them more than the urgent requirement increases the running cost of your business. But couldn’t you go to a reputed provider of quality compatible or recycled cartridges. Such carts, if produced with proper quality check and the printer specifications in mind, can be as productive as the OEM ones. There are many who are using these kind of cartridges with elan. They never have had any kind of problem with them. Not only did they help themselves save some bucks but also supported the environment. You know every new cartridge you purchase adds to the industrial waste polluting our environment. Recycling these cartridges eventually helps us all.
Online shopping has made things so easy that one could procure quality ink cartridges from the comfort of their place and that too at reasonable prices. One can save a lot of time as well as the trouble of visiting the shop to purchase the cartridges. Just make sure that you buy from a supplier which has an impeccable record of dealing in ink cartridges. Do little homework and purchase online. The product would be shipped to your home or office in the minimum required time, saving you lot of headache.