I am experiencing this same problem.
I purchased what was advertised and looked to me like a genuine Canon ink cartridge from Buy.com (PGI-8M) When I installed it in my MP810, the printer shut down and would not power up... at all.
I was out of town for five days, and when I returned it would at least power up, but now I get the B200 error (only for a split second) and then the screen states: "Error 5020 Release the scanner lock switch and turn the power off and back on."
The scanner lock switch is clearly in the unlocked position, but I tried all combos of power up and down and moving the on-off switch to be sure.
I've searched and searched but can't seem to find a solution. If someone has found a solution to this problem, please post it here! Thanks.
...
I purchased what was advertised and looked to me like a genuine Canon ink cartridge from Buy.com (PGI-8M) When I installed it in my MP810, the printer shut down and would not power up... at all.
I was out of town for five days, and when I returned it would at least power up, but now I get the B200 error (only for a split second) and then the screen states: "Error 5020 Release the scanner lock switch and turn the power off and back on."
The scanner lock switch is clearly in the unlocked position, but I tried all combos of power up and down and moving the on-off switch to be sure.
I've searched and searched but can't seem to find a solution. If someone has found a solution to this problem, please post it here! Thanks.
...