Print cartridge is designed for use with Brother FAX 575 Personal Fax with Phone and Copier. All genuine Brother printer supplies are designed as part of an entire printing system to provide a superior degree of quality. Cartridge yields approximately 150 pages.Print cartridge is designed for use with Brother FAX 575 Personal Fax with Phone and Copier. All genuine Brother printer supplies are designed as part of an entire printing system to provide a superior degree of quality. Cartridge yields approximately 150 pages.