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This isn't for the faint of heart and will require a LOT of reading, but you might want to look at this (very long) thread. As I mentioned in my previous reply, I have seen ink congeal into a flexible glop, and over the years, I have seen this "glop" block the passages leading from the cart to...

My wife and I now split our time between Florida and the northeast. We have an i9900 in each location. I used to print a lot of family photos, but our children no longer want prints unless it is a special occasion and they want a framed print. As a result, the printers don't get nearly as much...

@easytimes - I remember reading some years ago that you can reset an ink tank warning that "goes red" (at least on the older printers) if you first remove the print head, then do the reset.

@Emulator Tasktron didn't have the i9900 listed on their system. When asked whether their print heads would work in an i9950 they replied "we are not entirely sure if the European version of the QY6-0076 part will be compatible with a US model i9900". My question remains: "Is anyone running...

I sent a message to Tasktron to get their input (even if they won't ship to the US), but I had previously contacted Canon and they told me that Canon doesn't list the QY6-0076 as compatible with an i9900. I told them that in the past it was listed as compatible, but they just repeated the...

Thanks for the info - I never noticed that there was a revision number on the part number. Before digging into the details, I ordered one of these heads from Canon about a week ago and it just arrived yesterday. It has a revision number of "-000", the same as a spare print head that was...

Did the box look like this? If so, have you used the print head from that box, and in what printer? I finally found the link that made the claim that the print heads from these boxes aren't compatible with the older printer models - here is a screen shot: So... has anyone successfully used...

I have been using Canon's i9900 printers for many years and now have several working spares as backups. These printers are quite reliable, but every few years I blow a print head (5 orange blinks or regular patterns of a missing ink) and have to install a new print head. The original print...

I assume that you are referring to the paradox that we eliminate air from the ink in the felt by first completely filling the felt with air. I think that I understand why the conditioning solution helps, but I am not expert enough to write an explanation that would stand up to close scrutiny...

@mikling Those are a great set of videos. A few comments: At 5:30 in video #3, you call the missing ink "foam". I prefer to think of it as air pockets in the "felt" (see this post), where the ink no longer wets out to the inside of the cartridge case/felt boundary (where you can see the air...

I don't print nearly as much as I used to, but I still use my old i9900's with BCI-6 carts using Precision inks and top refilling. The new magenta inks do not wet out the "sponge" nearly as well as the old inks when refilling, but here is what seems to work for me: Start with a purged cart...

The point is that I don't want to upgrade and that I never asked for nor accepted their offer to upgrade. I am overjoyed that the upgrade failed and that I don't have to restore my system from a previously saved image. Has MS decided that they own our computers and that they can change things...

Has anyone else encountered MS trying to update from 7 to 10 without asking? Yes - I got a few of those annoying messages about a free update, but I always reject them. Today, I happened to look at the update history and found that they have decided to install the update anyway. Here is a...

Here is a 2010 comparison of several monitor calibration various systems.

Whatever caused the blockage was probably responsible for at least 2 of my clogged print heads that required disassembly and a high pressure purge in the plastic body to clear. Good find. Since the ink has to pass through the very fine filter at the cart's exit to get into the print head, my...

Sounds like Canon's (belated) answer to the Nikon D800/D810. Will this re-ignite the pixel count war? Personally, I would rather have the high ISO capability of the 5DIII than the extra pixel count of the 5DS.

I bought 500 used BCI-6 carts a few years ago and purged/dried the salvageable units. I have experienced zero problems when using a purged/dried cart stored in a plastic bag even after several years of storage.

Why not submit your question here? Be sure to scroll back through previous questions, as there is a lot of interesting information. If you like geek humor, try the original site here.

+1

The circuitry on this photo-micrograph was very near the surface of the print head, based on the distance from the point of first focus to the circuitry. This series shows what the microscope saw as it was focused deeper and deeper into the ceramic layer. The nozzles appear to be integral to...