The print life of Brother toner cartridges is based upon their ability to continue to achieve guaranteed print quality. If you choose to continue printing with the toner cartridge beyond its estimated print life, you may do so by enabling Continue Mode. Continue Mode will force the machine to continue printing after the "Replace Toner" message appears on the display or the Status Monitor indicates that the toner cartridge must be replaced. Go to our website, click Contact, and then click Support Center. Enter your model number to display information and FAQs for your product. Search for “Enable Continue Mode” in the FAQ section. If the machine continues to have an issue, please reach out to us directly.

Hello, The stated page yields for genuine Brother TN730 toner 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. We will be happy to help you with the vertical lines you are experiencing. Brother Customer Support Team is available to assist you direct: www.brother-usa.com/brother-support

We are sorry that you are experiencing yield issues with your Brother MFCL2710DW machine. We'll be happy to help you. Our Brother Customer Support Team is on stand-by to provide quality products and service to our customers via online, email or live chat: www.brother-usa.com/brother-support. Keep in mind that 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. Please contact us if your need any clarification related to the toner cartridge usage for your Brother machine.

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. Please verify you have purchased a new Brother Genuine cartridge by following the steps on this website: https://www.brother-usa.com/supplies/ink-and-toner/security If you have any questions about your Genuine cartridge, please contact Brother customer service at www.brother-usa.com/support.

Thanks for taking the time to review your experience with the Brother TN730 toner. We appreciate your feedback. I’m sorry to hear that you are having toner yeild not as expected with the Brother TN730 toner. I sincerely apologize for any inconvenience this issue may have caused you. We’d like an opportunity to help. Please contact us directly at: https://www.brother-usa.com/support

Hello Winston24, your feedback is very important to us. The number of pages that can be printed with a toner 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.). It's important to remember that a typical printed document is one letter-size (8.5" x 11") page with 4% - 5% print coverage. If there's anything else we can help you with, please don't hesitate to contact us for support using the link below. https://help.brother-usa.com/app/ask/p

We understand your Brother TN730 cartridge did not last long. 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 Brother Genuine cartridge, please contact Brother customer service: https://www.brother-usa.com/brother-support