We are sorry to hear that you are unhappy with your purchase of the Brother TN-730 toner cartridge and we'd to help. We have many helpful resources on our support website which should address this issue. If the problem persists, feel free to contact Brother Customer Service directly at https://www.brother-usa.com/support

We are sorry that you are experiencing issues with the Brother TN-730 toner cartridge and we understand your disappointment. This toner yields approximately 1,200 pages based on ISO testing standards. The number of pages that can be printed with a cartridge is affected by several factors, including paper size, number of pages per print job, amount of print on each page, font size, and print content (graphics, charts, etc.). If you feel that the cartridge did not yield as advertised, please contact us directly at: www.brother-usa.com/brother-support

Hi, we are sorry to hear the toner yield did not meet your expectation. We'd like to help. The stated page yields for genuine Brother cartridges are based on the ISO testing standards. The number of pages that can be printed with a cartridge is affected by several factors, including paper size, number of pages per print job, amount of print on each page, font size, and print content (graphics, charts, etc.). Print jobs with large text fonts, graphics, charts, and/or large amount of solid coverage (black or any given color) will use much more toner and will shorten the life of the toner cartridge. If you have any questions about your Genuine cartridge, please contact Brother customer service at www.brother-usa.com/support