Amazon.com: Quality BLACK Toner for BROTHER TN221K, HL-3140CW, HL-3170CDW, MFC-9130CW : Office Products
I was just gifted this (used) Brother HL-3140CW and black only pages are printing clean with no problems, but I did a test color print and it came out like this 😱
Brother HL-3140CW Transfer Belt Unit, Genuine (E2077)
Brother™ Digital Color Printer with Wireless Networking | HL-3140cw - YouTube