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It has been over seven years now since "pharmacist" proposed his print head storage fluid of 20% isopropanol; 20% propylene glycol; and 60% distilled water. Can any forum members give a testimony as to the effectiveness of this?

Have you considered buying a cheap used printer at a thrift store (Goodwill) for your trip and leaving your big Pro 100 home where it is safe from the dangers of travel? Where I live there are many used but still working printers available for between $5.00 and $10.00

I agree a blocked vent would cause ink starvation when printing, but what if the top sponge was so plugged up, or restrictive, it could not breath well enough to handle the larger venting volume of air required during the purge cycle, but still open enough to handle the very small amount of...

I have had cross contamination from time to time also, but it doesn't seem to be consistent. I rotate ink tanks rather than filling the same one when it runs low. This made me think the problem may with the ink tanks themselves. This is a long shot, but if the venting of an ink tank is not...

I had an interesting situation about a week ago. My iP6000D started printing very poor quality. Nozzle checks showed PC and M colors bad. I did several deep cleanings with no improvement. I than did an extensive out-of-printer head flush, but still no improvement. Then I noticed the PC ink...

Just a thought, but did you perhaps change the ink drying time setting?. It is nornal for the printer to pause printing if there is a section containing colors to allow the ink to dry to prevent smudges. You can change the drying time setting from the Printer Preferences >>>Custom Settings...

Do not buy another print head without checking the lawsuit pending against Canon regarding this error message. There are almost 1000 reports that a new print head will not fix this problem Do a Google search for Canon printer lawsuit for more info.

Yes

Here is another reported case. http://www.nifty-stuff.com/forum/viewtopic.php?id=7340

The spot on the far right side belongs there, but the rest of the strip should be clean. This strip is critical in telling the print head where it is along the print path. Any false information caused by dirt, and maybe scratches too, could cause the problem you are having. Could the white...

I suggest you look for any ink spot splatter on the transparent timing strip just behind the print head and clean it with a damp cotton tipped swab (Q-tip).

My scanner did not make a good image of my Service Mode nozzle check so I took a picture of it. This will give you some idea of what a working iP6600D printer nozzle check should look like, but mine may not be in perfect tune.

I also have the iP6600D, along with several other Canon printers. I see a faint indication of magenta on your nozzle test, and suspect one of two deep cleaning cycles may help. If not there is considerable information on this forum for extra ordinary print head cleaning and purge pump tests...

you said: "I tried syringing some water on the purge pads, it does not stay on very long about 10 seconds before it has drained away" This is not normal. The pads should hold the water until the purge/priming pump sucks it through the pads. If it is just draining off without the...

About two years ago there were discussions on this forum of leaking seals and the use of High Vacuum Grease. See: http://www.nifty-stuff.com/forum/viewtopic.php?id=1693&p=1 I have used this on some printers in the past but can't say how effective it was. This air leakage problem is why I...

I suggest you look carefully at the rubber seal in the print head for the magenta ink tank to see if it is damaged. When you install the ink tank does it feel the same as the other tanks? Is the rubber seal being compressed the same as the other tanks? Remember that the purge/priming pump...

I think Grandad35 may be right. The holes I added for the German fill method and the one used to move the sponge were sealed. The outlet port and serpentine top vent were open. The ink tank was never filled by the top fill method, so there were never any holes placed in the ink chamber. When...

This was not such a good idea. Do not try it. The one tank I tried it on, and pictured in the first posting, leaks.

Grandad35; Interesting theory on the way the sponges control ink flow. I guess a lot more experimentation is required on my part to see if my idea has any merit. The one ink tank I did refill (the tank pictured) did have a permanent groove in the sponge, as Tudor observed in posting #6...

There are five slots, or depressions in the wall just above the opening between the sponge side and reservoir side that run up the wall for 3/8 inches. These depressions are intended to provide an air (vent) path from the top sponge where it freely connect to the serpentine vent. What...