I should have said to set the paper size to custom (instead of A4, Letter, etc) and set it to slightly larger than 4x6, say 4.25"x6.25". But your paper is actually 4"x6". If your document is programmed to be exactly 4"x6" then it will be printed just like borderless. But there may be an issue. There must be reasons Canon switch to dye ink when you set up to print borderless. I think when you print borderless some ink will fall outside the paper's border. This part of the ink will fall onto the foam at the bottom of the paper path. If the ink is dye ink it will be absorbed by the foam. But if it is pigment ink when it dries it may be trouble down the road. If you are not printing photos why do you want to print borderless?
I think ip4000 is hard to come by these days. I would consider ip4700 if you can find one. Any ip4xxx printer will be hot out there.
I think ip4000 is hard to come by these days. I would consider ip4700 if you can find one. Any ip4xxx printer will be hot out there.