Review on V4INK 2PK Compatible Toner Cartridge - Canon 120 CRG-120 High Yield Ink for ImageCLASS D1100 D1120 D1320 D1350 D1150 D1180 D1170 D1370 MF6680DN Printer by Nick Narvasa

Works perfectly. The company recently changed the design (Spring 2018) and now prints 10-50 solid black pages each time the cartridge is touched/poked/inserted/removed and reinserted. Literally uses up most of the toner every time you install a new cartridge. Cartridge. Each completely black page corresponds to 500-1000 normal pages. Sometimes a cartridge never springs back and you just have to give it up and throw it away, ignoring its new 'special instructions'. Ignore any reviews older than February 2018 as they would be using one of the older designs. (We use 1 toner cartridge about every 2-3 weeks.) Also, the toner cartridge generally now gets toner everywhere, it just keeps falling out and also ends up in random spots inside the printer as well as on your desk and hands. Even if you put in a brand new cartridge without any problems, you will find that the toner powder has somehow leaked out. The first attached photo shows what should happen according to their new "special instructions". The instructions imply that it is now "ok" to print multiple pages of black paper until it is blank. This can happen with each new cartridge for a different number of pages. This also happens whenever you need to remove the cartridge (e.g. paper jam) if you "don't pull the cartridge out fast enough" (according to their instructions). With one cartridge, after 4 attempts to reinstall (trying to follow the specific instructions) and over 50 papers wasted, I gave up because it still never "cleaned up". The last photo shows an odd buildup of toner (almost like thick plastic) printing on good pages after a "clean" cycle.