ng_reader wrote:
So, I have this printer the Canon MX700 all-in-one.

Which, I would recommend, only as the inks are affordable if you use
refurbs and such. Basically $2 an ink cart.

But, buyer beware, what will $2 get you? Pretty sure you can omit "quality".

I have two questions:

1) How do you know when your print-head has gone bad? I took it off,
soaked it in alcohol, put it back and it was a little better, but not
completely. Seriously, is there any difference between a new print head
and mine other than the new one isn't clogged?

and

2) Actually, I only have that one question.

Thanks in advance

Mr. Curious
A printshop for filling empty cartridges, told me they use
"glasex", a spray for cleaning glass surfaces,mirrors, etc.
A few millimeters in a saucer, and put the cartr. face down
in it. Leave alone for an hour or so, or stop when you see
ink starting to leak out in quantity.
Wipe clean, and test.