I have a Canon TS9551C Printer and I am going to use refill type cartridges because it is more cost effective .
The original cart numbers are C581 (Yellow Cyan Magenta Black ) and a large Black C580 the nearest I can find in Canon bottles are 490 which is the four standard colors but no special Black .
Can anybody tell me if the Blacks are a different Ink ( Dye and Pigment ) and if so what number Black to buy .
Cheers Steve 

