MF6500 shooting blanks
Hi
I hope you still have your copier and have not yet sent it in. I had the same problem and when I called Canon Tech support, they told me to go buy a new CANON brand toner cartridge that costs from $150 to $180 each to see if it would fix the problem. Obviously, if this did not fix the problem, I cannot return the toner for a refund. I was using a knock off brand that cost me $40.
I found that the problem is a metal shutter that is inside the machine behind the toner cartridge. It is a metal shutter about 1/4 inch by 4 inches that moves up and down to protect the user from the laser. Your shutter is not moving up out of the way of the laser. What I did was grab the center of this shutter with a hemostat (or long thin pliers) so that it bends this shutter just a little bit, then I pushed the shutter upwards with a butter knife. This little bend in the metal shutter causes the shutter to stay in an upright position by friction of metal on metal. Now it copies fine, even with an offbrand toner cartridge. It saved me hundreds of dollars on repairs or replacement parts.
I think that Canon tech knows about this, but they make more money when they replace a whole new laser unit for you or charge you for repairs.
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