John Thomas Smith wrote:

Recently bought a Canon 4200 for wife (she likes it a LOT) and
eventually plan to refill the ink cartridges myself

IF YOU ARE A LIGHT USER THAT IS A MISTAKE. WHY RISK YOUR PRINTER UNLESS
YOU ARE A HEAVY USER. THEN YOU HOPE YOU CAN GET IN A FEW REFILLS BEFORE
THE HEAD CLOGS. AND IF YOU ARE A HEAVY USER THEN JUST CALL CANON AND
TELL THEM YOU USE OEM INK AND MAYBE THEY WILL SEND YOU A NEW PRINTHEAD.

THIS PAIN IN THE ASS IS ONLY WORTH IT FOR HEAVY USERS.

(once the
places selling ink have forumulations for the 4200, and when
the original cartridges need refilling)

I am not 100% sure how the new cartridge chips work, but think
I understand that removing/replacing the cartridge is "part" of
how the chip "knows" that "something" has happened

So... instead of removing the cartridge to drill a hole and add
ink,

AND SLOP UP THE PRINTER

would it be better to drill (or melt - I've seen at least
one message talking about a heated paper clip) the hole and just
add ink to the cartridge while it stays in the printer?

John Thomas Smith
http://www.direct2usales.com
http://www.pacifier.com/~jtsmith