Review on 🖨️ v4ink Compatible Toner Cartridge Replacement for Brother TN450 TN420 High Yield Black Toner - Use for HL-2240d, HL-2270dw, HL-2280dw, MFC-7360n, MFC-7860dw, IntelliFax 2840, 2940 Printer (Black) by Fahmi Manna

Original post: 6/9/171. Changed toner since I had a printer (2270DW) and now each page has a horizontal toner bar at the top (in the "hat" section). It is only on the front, not double sided. It started almost immediately after applying this toner. I was hoping that the extremely low price ($11) would only affect the durability of the product and not the quality of the product. I put my original toner back in the device to ensure the toner streak only appears when this device is in the printer. Of course it could just have been a bad toner cartridge, but now that cartridge is coming back and I'll look at the competition. Update: 6/16 contacted seller. They apologized for the quality and offered to send replacements for free. I accepted their offer and it worked. I haven't tested this yet but found your answer worth mentioning and upped the product rating to 3 stars. So while the company gets 5 stars, the product gets 3 for now, and I'll post an update with this recent replacement.