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the story: i just got a good deal at staples this week trade in old printer for new one. i just ordered a hp photosmart premium aio that uses the 564 cartridges because the previous printer i had the business 1100 quit working. the questions: i was wondering how does the printer know that...

i was wondering is there any differences in formulas between the different cartridges? meaning can you take the ink out of another cartridge within the same family or form factor and use it in another ? for example the hp 10 yellow is part c4842a and the hp 11 yellow c4838a. the only...