We have tested our CIS systems for several printers, but not for all of the printers because we don't have them here in our office.
But our manufacturer has tested it and it has worked. I saw your other post earlier about the video isn't a MP640. So you are sure that the model he is working on isn't the MP640? It is weird how he labeled the title as MP640...http://www.youtube.com/watch?v=N6-fnIEmkT8
E-mail us with your contact information and we'll contact you to see what is the best solution for your situation. email@example.com
. Hope to hear back from you soon!