- Apr 16, 2011
- Reaction score
- Sarasota, FL, USA
- Printer Model
- Canon ip4500, 9000 MK II, PRO-
As I've said, no rocket science here, and no disrespect on Pharmacist's suggestion.@pharmasist posted this :
Many forum members have enjoyed my formula to condition the sponge of Canon cartridges.
The formula is as follows:
-3 ml propylene glycol (or 2 % glycerol)
-20 ml isopropylalcohol
-distilled water up to 100 ml
The cleaning solution to free up clogged printheads is by adding 20-25 drops of concentrated ammonia to each 100 ml of cleaning solution.
Today I suffered from a tenacious clog in my Epson Pro 3800 in the magenta and cyan channel, caused probably by long term of non-usage and the very low humidity in my room because of the high heating since it is now freezing in Belgium. Even after 3 cleaning cycles the clog did not go away. In the past one cleaning cycle is enough to clean minor clogs. So today I folded a piece of towel paper into a nice thick and even strip and drenched it with my cleaning solution and put it under my printhead and let it soak for about 1 hour. After that I executed one cleaning cycle and...all the clogs are gone. Whow it works fantastic and the formula is
My chemistry knowledge is not perfect, but I've spent a lot of time and fun with photo chemistry, making my own developers and fixers for the wet darkroom. I can't see why propylene glycol is necessary for head cleaning, it's not much of a solvent. Especially at the level suggested. Alcohol is much more active, and ammonia, with or without surfactant, is inherently alkaline which tends to break up organic molecules.
And propylene glycol isn't readily available - although "non toxic" automotive anti-freezes and RV water system anti-freezes are available, why bother?