To delco007,
I see you posted the somewhat same question with new considerations--and those new considerations should be adressed.
First, any printhead can become clogged---but use a good quality refill ink in a Canon and the problem is minimal---resently read a post have a Canon i960 user just complted
20,000 pages--with refill ink--and is still on the original printhead.
I can't recommmend any HP for refilling ---just way more hassle.--and with a cheap type printhead on the cartridge---your OEM cartridge just does not stand many refills.
The MP750, MP760, and MP780 are multi funtional unchipped Canons--the ip3000, ip4000, and the ip5000 are similarly unchipped--but are not multifuntional printers. Basically any Canon printer using the
BCI-3&6 cartridge line is unchipped and superfine refill candidates
The Canon MP450 is not only chipped, but it also uses rather small cartridges that make it a poor choice for refilling.-----something like the MP500, MP800 uses the larger CLI-5&8 cartridge line--and those models can be refilled but can't use third party compatable cartridges--at least until a chip resetter comes onto the market--and the chips make refilling more hassle.
But don't take my word for it--just google the nifty stuff forums.
Or do take my word for it---I do refill two unchipped Canons---and I save a bundle--and its just almost too easy--and hassle free to boot.---less than $40. of supplies can give you the equivalent of $800. of OEM cartridges.
And I am talking a highly recommended to quality supplier here--not a fly by nite el-cheapie ink.