I have been told you can get a chip to increase the Black copy speed on the C451 to 55 cpm so it is equal to the C550 for a few hundred dollars.
Has anyone tried this? Did it work? Did you have any problems, etc..
I am Looking for any advice. Also where did you order these from.
Has anyone tried this? Did it work? Did you have any problems, etc..
I am Looking for any advice. Also where did you order these from.
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