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1. Don't swap any electronic parts (printhead, etc.) from the sick printer to the "new" printer.....very dangerous to the health of the new printer. 2. You could have Canon "take a look at" the sick printer if it is still under warranty. 3. Sell the sick printer on eBay for parts/repair.

That's OK, just get 'em covered. Just a heads up: Avoid touching the printhead intake screens.

Re-read post #10

1. The contact cleaning regimen sounds good and thorough. 2. All bets are off until known good carts are installed. 3. Never leave a printhead "uncovered" for longer than the few seconds it takes to change out carts. You could just snap in whatever carts you have or being more prudent you could...

OK, having cleared that up....lonestar, you have already dealt with the printhead unless you bought the MX700 used. As panos says, just unlatch it and see to it that its contacts and the harness (machine) contacts are clean. Verify that the aforementioned two pairs of contacts are clean.

Typically a new Canon printer will ship with the printhead "loose" in a sealed bag. The end user installs it as part of the setup. Maybe the MX700 ships with the printhead pre-installed ? On any of my Canons, it would take me just a few seconds to remove the printhead after the carriage had...

Sounds good. Before installing the new carts ensure that all *contacts are clean and dry if you suspect that they may have gotten contaminated. *contacts 1. cartridge to printhead 2. printhead to printhead seat (this is the terminus of the harness that goes to the logic board) You probably...

Yep, at this point always unplug the machine when the carriage is brought to center for extended service. It's OK to leave it plugged in for a quick cartridge change, however. Yikes! Yes, do yourself a favor and get some new carts.

Whoaaa! Don't touch the MX860....it's a different animal to put it kindly. When doing your troubleshooting on the MX700 you want to minimize variables. That means whatever it takes, use known good carts. Carts that have been tampered with may add confusion to the mix.

You mean MX850 ?? Newegg had some MX850 recerts but they are presently sold out. Before you pull the trigger on a different model, post it here and let the members comment. And I agree, don't give up on the MX700....I can't believe you've done fatal damage. Edit: CanonUSA store has MX850...

Chipped carts may not play well with a microwave.....careful use of a conventional oven should work. Unchipped carts should be OK for short duration micrwave exposure. I would however keep the "micro carts" as cleaning carts only in case there is some unforeseen degradation from the microwave...

Flashing lights, I believe, are the error message with this model. Colors and sequence reference the error. I don't have the iP4200 service manual, but have a look here (iP4000 manual) under "List of Errors" : http://www.timtaylor.net/tech/Canon_IP4000.htm

Yep, I actually use the top-fill and I get a couple of drops at most, also. If you're getting more than that you are leaking air and it's usually on the reservoir side of the cart. I suppose an aftermarket cart with it's inferior foam could bleed too much air from the foam side of the cart.

This is the norm with properly handled OEM carts.

I have contaminated the sponges in a 3-in-1 cart by overfilling.....I've never soaked an integral printhead in solvent and would only do so as a last resort. I would try to get ink moving as soon as possible after a brief soak. This cartridge design is tricky to refill and easy to over-fill if...

I have an iP4000 also, and it's always been fed high quality inks....still in perfect shape. Refilling with Hobbicolors inks costs me a bit under $1.00 per cart last time I looked. Print Pal peddles junk OA100 inks....known to clog printheads. I have no idea what ink Megatoners uses....they...

My local pro refiller uses a suction device, as pharmacist mentioned. Without such a device, I don't know how you would purge this type of cart with the integral head. The printheads on these carts are not as durable as the below mentioned design so care must be taken when dealing with them...

I wouldn't be interested in placing solvent inside this type of cart in the first place. I would entertain the option of soaking the cart's printhead in a shallow bath if the printhead was clogged. Then run some test prints to flow ink and carry off any solvent.

I think a group hug would be most appropriate at this time :D Oh, and a favorable result for Token...

"Blotting" is just a preliminary test. With an unknown cartridge, it would be prudent to test the cart with a small amount of ink installed to verify functionality before refilling completely. I would also want to flush out any cleaning solvent before storage. My reference to tap water was that...