Title: This cartridge causes jam for my MF3240 printer!!!
Product review: I bought one such cartridge last year, and the printer jammed all the time. So I sent my printer to Canon service department (still under warranty at that time). After two weeks, they told me it was the cartridge problem, which caused the jam. I didn't believe that. Then my lab mate bought another one from this store. It still didn't work!!! Lots of jam and ink leaks... This compatible one is really not compatible with Canon ImageClass MF 3240!!! As the printer has been left unused several months, and the it still jams now. I don't know I can change the cartridge or not. But what I've realized is that the cartridge caused the jam problem!
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